Download or read book The Mad Scientist teaches Life science written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life science, also known as ‘biology’, consists of all fields of science that involve the scientific study of living organisms like plants, animals, and human beings and their vital processes. Life is all around us; from gigantic whales that live in the oceans, to tiny germs that crawl around on your computer keyboard, Life Science explores the origins, evolution and expansion of life in all its forms. Biologists learn how living things work, how they interact with one another, and how they evolve. The 64 projects contained in this science experiment e-book cover a wide range of Life Science topics; from Botany & Zoology to Human anatomy & Ecology… there are even experiments on mycology and entomology all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Amongst many others, you will grow plants in your own hydroponic garden, study how the amount of leaves affects the growth of a plant to learn about photosynthesis, colour a white flower with food colorant to experiment with capillary action, and create a device to see how much air can your lungs can hold! Other fun experiments include: Mummifying an orange, studying if green plants produce oxygen faster in stronger sunlight, testing if ‘Vitamin E’ can slow down the aging process, grafting two separate types of plants together, using ordinary household items as food preservatives, testing how much Vitamin C is in fruit juice, building your own biosphere, studying how ants communicate to find their food, making a box trap to capture nocturnal insects, mapping the positions of tastes of you tongue, testing your friends reflexes with the knee-reflex test, making a device for listening to your heart, making a Snellen chart to test your friends’ eyesight, a Von Frey device, a colourful fungus garden, a Hummingbird feeder and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Science can be real simple and is actually only about understanding the world you live in! Science certainly does not need to be complicated formulas, heavy text books and geeky guys in white lab coats with thick glasses. Science experiments are an awesome part of science that allows you to engage in cool and exciting hands on learning experiences that you are sure to enjoy and remember! By working through the science experiments in this book, you will learn about science in the best possible way – by doing things yourself. Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.

Download or read book The Mad Scientist teaches Earth science Astronomy written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth Science is the study of the Earth, its atmosphere, and all of its neighbours in space. Because of the spherical shape of the Earth, the various categories of Earth sciences can be subdivided into the various ‘spheres’ that make up the planet; the lithosphere, hydrosphere, atmosphere, and the biosphere, corresponding to rocks, water, air, and life. Perhaps because the study of the Earth is usually about things that are readily observable, most people find Earth science subjects relatively easy to grasp, practical and very enjoyable! The 58 projects contained in this science experiment e-book cover a wide range of Earth Science topics; from Astronomy & Geology to Gravity & Meteorology… there are even experiments on environmental sciences and the weather all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Amongst many others, you will prove the rotation of the earth with Foucault’s pendulum, use binoculars to safely project a detailed image of the sun on a wall; make a sundial to tell the time and experiment with gravity by making a spring balance to compare the weight of various objects! Other fun experiments include: Learning about the phases of the moon with your own moon box, learning how to find the North Star in the night skies, calculating how fast the earth rotates around its axis, demonstrating how a total solar eclipse works, making an inclinometer or dipping compass, telling the time with your own water clock, making a rainbow with water and a mirror, using the sun’s infra-red rays to cook a potato, making dirty water pure and drinkable with evaporation & condensation, measuring the height of your school with the use of the sun, making a see-saw candle, making a water barometer to measure the air pressure, wind vane, evaporative refrigerator, anemometer, hygrometer and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Science can be real simple and is actually only about understanding the world you live in! Science certainly does not need to be complicated formulas, heavy text books and geeky guys in white lab coats with thick glasses. Science experiments are an awesome part of science that allows you to engage in cool and exciting hands on learning experiences that you are sure to enjoy and remember! By working through the science experiments in this book, you will learn about science in the best possible way – by doing things yourself. Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.

Download or read book The Mad Scientist teaches Chemistry written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry is the study of matter in the form of atoms, molecules, and the interactions that happen between them called chemical reactions. In its vast sense, chemistry is actually the science of all the available materials that make up the world around you. This includes all ‘matter’ that you can see, hear, smell, taste, and touch! Matter is everything that has mass and occupies space and all matter is composed out of the basic building blocks we call ‘atoms’. Understanding how to predict and explain how matter change when they react to form new substances, is what chemistry and chemists are all about! The 50 projects contained in this science experiment e-book cover a wide range of Chemistry topics; from Chemical reactions to Elements & Compounds… there are even experiments on chemical power and endothermic reactions all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Amongst many others, you will use chromatography to predict the ‘fall’ colour of a green leaf tree, make your own stalactites to learn about evaporation, make glue, toothpaste and caramel to experiment with chemical reactions, and use various substances to test if a substance is an acid or base! Other fun experiments include: growing your own crystals on a piece of string, testing for the presence of iron in breakfast cereals, writing secret messages to your friends with your own invisible ink, using iodine to test for the presence of starch in foods, making a detector to predict the possibility of rain, making an exothermic reaction with vinegar & steel wool, using chemistry to make your dull coins shine, electro-plating a nail, making a ‘lava lamp’ with oil & water, making a fluid for copying newsprint to blank sheets of paper, making paper, snuffing out a candle by ‘pouring’ carbon dioxide gas over it, Testing how much Vitamin C is contained in various fruit juices and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Science can be real simple and is actually only about understanding the world you live in! Science certainly does not need to be complicated formulas, heavy text books and geeky guys in white lab coats with thick glasses. Science experiments are an awesome part of science that allows you to engage in cool and exciting hands on learning experiences that you are sure to enjoy and remember! By working through the science experiments in this book, you will learn about science in the best possible way – by doing things yourself. Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.

Download or read book The Mad Scientist teaches Physics written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physics is all around us. It is in the electric light you turn on at night; the bicycle you ride to school; your wristwatch, CD player, or that swing ball set you got for Christmas! Physics is the branch of science concerned with the nature and properties of matter, energy, space and time. If you can name it, chances are physics is involved. Everything in the universe has some effect on every other thing. Physicists study those effects. The 78 projects contained in this science experiment e-book cover a wide range of Physics topics; from Optics & Light to Air pressure & Acoustics… there are also experiments on forces & motion, thermodynamics and mechanics all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Amongst many others, you will make use of the power of air pressure to lift objects, make a tin can that will comeback like a boomerang to learn about kinetic energy, use ice cubes to test if dark colours absorb more heat than light colours to experiment with thermodynamics, and make pulleys, levers and gears to study mechanics! Other fun experiments include: Making your own guitar out of an ordinary shoebox, using sound waves to make beautiful patterns on a wall, propelling a small boat with compressed air, learning about the power of moving air by making a windmill, launching your own rocket with the power of air pressure, making a depth indicator similar to the gauges used on ships, a kaleidoscope, periscope, telescope, water turbine, cartesian diver, camera obscura, magnifying glass, thaumatrope and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Science can be real simple and is actually only about understanding the world you live in! Science certainly does not need to be complicated formulas, heavy text books and geeky guys in white lab coats with thick glasses. Science experiments are an awesome part of science that allows you to engage in cool and exciting hands on learning experiences that you are sure to enjoy and remember! By working through the science experiments in this book, you will learn about science in the best possible way – by doing things yourself. Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.

Download or read book The Mad Scientist teaches Electricity Magnetism written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electricity and magnetism has been the focus of research and study throughout history and despite its huge importance in our daily lives; we hardly ever stop to think what life would be like without electricity. Even though we take electricity for granted, it is used to enhance our lives in many areas from lighting, heating, and cooling our homes to powering our televisions, computers and many other appliances we depend on every day! The 50 projects contained in this science experiment e-book cover a wide range of Electricity & Magnetism topics; from Static electricity & Electrical current to Resistance & Magnetism… there are even experiments on electro-magnetism and solid state electronics all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Amongst many others, you will make a light bulb shine using a lemon as a battery, Make a quiz board connected in series to learn about electrical circuit, make a compass to experiment with magnetism, and create a telegraph machine to see the science of electro-magnetism in action! Other fun experiments include: Other fun experiments include making an electrical door bell for your room, removing the tarnish off silverware using an electrolyte, how to tell which battery terminal is positive and which is negative, using a solar powered calculator to measure light levels, generating electricity by means of induction, picking up metal objects with your own electromagnet, making magnets float on top of one other, making ordinary steel objects magnetic, building a Franklin bells device for detecting high voltage lightning storms, building your own intruder detector, rain alarm, foxhole radio, electrical light bulb, electroscope and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Science can be real simple and is actually only about understanding the world you live in! Science certainly does not need to be complicated formulas, heavy text books and geeky guys in white lab coats with thick glasses. Science experiments are an awesome part of science that allows you to engage in cool and exciting hands on learning experiences that you are sure to enjoy and remember! By working through the science experiments in this book, you will learn about science in the best possible way – by doing things yourself. Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.

Download or read book TEACHING OF BIOLOGICAL SCIENCES Intended for Teaching of Life Sciences Physics Chemistry and General Science written by AHMAD, JASIM and published by PHI Learning Pvt. Ltd.. This book was released on 2011-11-30 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Students of today, especially at the school level, perceive science as a collection of facts to be memorized, whereas, in reality, it is constantly changing as new information accumulates and new techniques develop every day. The objective of teaching is not restricted to imparting scientific information to students, but also to help them apply these principles in their daily lives. This comprehensive book, written in an easy-to-understand language, covers the entire syllabus of teaching of Biological Sciences in particular and Science Teaching in general. In so doing, it takes into account the needs of teacher-trainees and in-service teachers. Organized into 20 chapters, the book discusses in detail the many facets and aspects of Biology/Science Teaching. The text introduces modern approaches to teaching, with the aim of improving student learning throughout their course. It emphasizes the need for pedagogical analysis vis-à-vis subject teaching, constructive approach, laboratory work, Continuous and Comprehensive Evaluation (CCE). In addition, the text highlights the difference between microteaching and simulated teaching. It also shows how e-learning and co-curricular activities can be successfully integrated in biological sciences teaching. NEW TO THIS EDITION Inclusion of one chapter on ‘Concept Mapping in Biology Teaching’. This chapter advocates the popularized constructivist approach of teaching-learning process. Besides, some figures, tables and flow charts are also added to make the book more useful to the readers. KEY FEATURES : • Analyses Constructivism versus Behaviourism. • Includes self-explanatory model lesson plan. • Discusses Information and Communication Technology (ICT) in the context of Biology/Science teaching-learning. • Suggests how apparatus and devices can be secured and cultured, and used in classroom demonstrations and student projects. Primarily intended as a text for students of B.Ed. pursuing course on Teaching of Biological Sciences/Life Sciences, the book should prove equally useful for B.Ed. students following courses on Teaching of Physical Sciences. In addition, diploma students of Elementary Teacher Education (ETE) having a paper on Teaching of EVS (General Science), and M.Ed. and M.A. (Education) students with an optional/elective paper on Science Education would find the book extremely useful.

Download or read book Primary Science for Teaching Assistants written by Rosemary Feasey and published by Routledge. This book was released on 2008-03-25 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This easy-to-use and accessible book has been specifically written for teaching assistants. It is packed with practical activities, ideas and strategies to help you to enhance your pupils’ scientific understanding.

Download or read book The Mad Scientists Club written by Bertrand R. Brinley and published by Purple House Press. This book was released on 1965 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The six members of the Mad Scientists' Club experiment with new projects which include investigating a strange sea monster and the theft of a valuable dinosaur egg.

Download or read book The Geek Dad Book for Aspiring Mad Scientists written by Ken Denmead and published by Penguin. This book was released on 2011-11-01 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fans of the New York Times bestselling Geek Dad and The Geek Dad's Guide to Weekend Fun will flock to the 3.0 version, The Geek Dad Book for Aspiring Mad Scientists. As Ken Denmead explains, most kids lack an understanding of science and an awareness of how it influences our everyday lives. What kids today need is a fun way to learn scientific concepts. This book will help scientists-in-the- making discover how our world works with creative project ideas, including how to: Grow crystals to power your Stargate and set your room aglow Extract your own DNA and decode your genes Build a MacGyver radio from nothing but cast-off electrical and office supplies Chock-full of instructional illustrations throughout, The Geek Dad Book for Aspiring Mad Scientists puts the fun back in science.

Download or read book Science Fiction Literature through History 2 volumes written by Gary Westfahl and published by Bloomsbury Publishing USA. This book was released on 2021-07-19 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides students and other interested readers with a comprehensive survey of science fiction history and numerous essays addressing major science fiction topics, authors, works, and subgenres written by a distinguished scholar. This encyclopedia deals with written science fiction in all of its forms, not only novels and short stories but also mediums often ignored in other reference books, such as plays, poems, comic books, and graphic novels. Some science fiction films, television programs, and video games are also mentioned, particularly when they are relevant to written texts. Its focus is on science fiction in the English language, though due attention is given to international authors whose works have been frequently translated into English. Since science fiction became a recognized genre and greatly expanded in the 20th century, works published in the 20th and 21st centuries are most frequently discussed, though important earlier works are not neglected. The texts are designed to be helpful to numerous readers, ranging from students first encountering science fiction to experienced scholars in the field.

Download or read book Lunch Walks Among Us written by Jim Benton and published by Simon and Schuster. This book was released on 2013-04-30 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Franny K. Stein is not your average girl—she’s a mad scientist. She prefers poison ivy to daisies, and when Franny jumps rope, she uses her pet snake. The kids in Franny’s class think she’s weird, wacky, and just plain creepy. Tired of being stared at, Franny decides to attempt her most dangerous experiment yet—she’s going to fit in. But when a giant Monstrous Fiend attacks the class, everyone knows only a true mad scientist can save the day. But has Franny lost her creepy, crawly ways?

Download or read book Handbook of Comics and Graphic Narratives written by Sebastian Domsch and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-07-05 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether one describes them as sequential art, graphic narratives or graphic novels, comics have become a vital part of contemporary culture. Their range of expression contains a tremendous variety of forms, genres and modes − from high to low, from serial entertainment for children to complex works of art. This has led to a growing interest in comics as a field of scholarly analysis, as comics studies has established itself as a major branch of criticism. This handbook combines a systematic survey of theories and concepts developed in the field alongside an overview of the most important contexts and themes and a wealth of close readings of seminal works and authors. It will prove to be an indispensable handbook for a large readership, ranging from researchers and instructors to students and anyone else with a general interest in this fascinating medium.

Download or read book The Mad Scientist Hall of Fame written by Daniel H. Wilson and published by Kensington Publishing Corp.. This book was released on 2012-03-01 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Muwahahahaha! Dr. Frankenstein. Marie Curie. Dr. Moreau. Captain Nemo. They're the most fascinating minds of all time--and now a science guru has teamed up with an expert in human psychology to coax them out of their laboratories and onto the analyst's couch. Real and fictional, famous and infamous, crazy and just crazily driven, these brilliant men and women exhibit a list of neuroses almost as impressive as their extraordinary accomplishments. At last, you can explore their early fixations, their ambitions, their successes and failures, and the particular quirks that have granted each induction into the Mad Scientist Hall of Fame, including: • Dr. Evil: Megalomaniacal doctor with antisocial personality disorder (and pathological dislike of his own son, Scotty) • Nikola Tesla: Real-life mad scientist with obsessive compulsive disorder (and he talked to aliens) • Dr. Jekyll/Mr. Hyde: Brilliant doctor gone bad, suffering from multiple personality disorder (and a penchant for strong chemical cocktails) • Lex Luthor: Villain and supergenius with manic mood disorder (and premature baldness) Witty, illuminating, and thoroughly entertaining, this one-of-a-kind book offers irrefutable proof that success, super-intelligence, and a mantelpiece full of Nobel prizes is no guarantee of sanity. Praise for Daniel H. Wilson "Daniel H. Wilson and Anna C. Long have made an exhaustive study of the evil mind. It is complete, pulls no punches, and reveals secrets that have hitherto remained hidden. It is for these reasons that I must liquidate them. Great book!" --Mike Myers, aka Dr. Evil from Austin Powers "Forget about John Connor--it's Daniel H. Wilson who is going to save us from the Terminators." --Forbes on How to Survive a Robot Uprising "A tribute to the far-fetched ideas that often drive progress." --Erik Sofge, Popular Mechanics, for Where's My Jetpack?

Download or read book Intersections of Formal and Informal Science written by Lucy Avraamidou and published by Routledge. This book was released on 2016-03-10 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science learning that takes place between and at the intersections of formal and informal science environments has not been systematically reviewed to offer a comprehensive understanding of the existing knowledge base. Bringing together theory and research, this volume describes the various ways in which learning science in various settings has been conceptualized as well as empirical evidence to illustrate how science learning in these settings can be supported.

Download or read book Teaching History with Science Fiction Films written by A. Bowdoin Van Riper and published by Rowman & Littlefield. This book was released on 2017-02-07 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular media has become a common means by which students understand both the present and the past. Consequently, more teachers are using various forms of popular culture as pedagogical tools in the history classroom. Science fiction is one of the most popular genres of contemporary film, a genre that permeates much of the current culture. In order to facilitate the use of science fiction films as learning tools, teachers of history need a dependable resource. Teaching History with Science Fiction Films is a guide for teaching U.S. and world history. In addition to covering key themes and concepts, the volume provides • an era-by-era overview of significant issues and related films, • a tutorial in using film in historical methodology, • user guides for 10 key science fiction films, and • sample exercises and assignments for direct classroom use. Among the films covered in this book are staples of American cultural literacy, including Things to Come, The Day the Earth Stood Still, Soylent Green, and Independence Day. Covering conceptual topics such as geopolitics, environmental consciousness, imperialism, immigration, gender roles, and technological innovation across the decades, Teaching History with Science Fiction Films will enable classroom teachers to effectively use movies to examine key social and cultural issues, concepts, and influences in their historical context. With a list of more than 90 recommended films, this volume will be an invaluable asset to any teacher of history.

Download or read book Theo Gray s Mad Science written by Theodore W. Gray and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Skipper & Her Mate is a book about the people, boats and wildlife on the Irish waterways. Told from the perspective of a woman with only a week's hire-boat experience learning to skipper a vintage timber cruiser, it is a journey through rivers and canals, and an apprenticeship in the ways of boating among a vibrant community of new and diverse people. When Nicki Griffin started boating in 2000, the inland waterways were occupied by older family boats. In the years to follow, however, she would witness these being replaced by larger cruisers and "gin palaces", changing the character of Irish waterways, and threatening what was, for many, a unique and special way of life. Following in the wake of such works as Theo Dorgan's Sailing for Home and Time on the Ocean, and Dick Warner's television shows, The Skipper & Her Mate will appeal to the novice, the river rat and the non-boater alike.

Download or read book Last Minute Science Fair Ideas A Day or Two Remains written by Experiland and published by Experiland science books. This book was released on 2010-09-23 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Have you ever wondered how a telescope brings objects closer or how cameras take pictures? How boats float or aeroplanes fly? All of these seemingly complicated things can be explained by basic science. With the help of this book, you will construct many weird, wonderful and wacky experiments that you can have hours of fun with! Is the deadline for your science fair project quickly approaching? Not to worry, the 'Last Minute Science Fair Ideas’ series is written in an easy to follow format that will guide you to create an exciting science project for the upcoming fair. The science projects in each of the books of this 4-volume series are conveniently sorted according to the approximate time required to complete each experiment. The 100 projects contained in this science experiment e-book cover a wide range of scientific topics; from Chemistry and Electricity to Life Sciences and Physics… there are even experiments on earth science, astronomy and geology all designed for young students from grade 1 to 8! With this book, you are sure to find a project that interests you. When you are interested in a certain science topic, you will have more fun, and learn more, too! Amongst many others, you will use the shadows of the sun to tell the time to understand how the earth rotates, construct a simple water turbine to see how hydro power is generated, make beautiful patterns on a wall to experiment with sound waves, and let a light bulb shine using a lemon as a battery to learn about electricity! Other fun experiments include making a kaleidoscope, periscope, telescope, intruder detector, doorbell, relay, fruit powered battery, recycled paper, cold pack, smoke bomb, water turbine, air pressure rocket, camera obscura, insect trap, water clock, water purifier, light bulb, inclinometer, sun dial, moon box and many, many more! When making these gadgets, you’ll discover that science is a part of every object in our daily lives, and who knows, maybe someday you will become a famous inventor too! Designed with safety in mind, most of the items you will need for the experiments, such as jars, aluminium foil, scissors and sticky tape, you can find around your home. Others, such as magnets, lenses or a compass, you will be able to buy quite cheaply at a hobby shop or hardware store.