How is your forearm like a lever? * What makes it easy to pull a flag up a flagpole? * How can a windmill help to do work? Janice VanCleave's Machines includes 20 simple and fun experiments that allow you to discover the answers to these and many other questions, plus dozens of additional suggestions on how to develop your own science fair project. Learn how an elevator works using a box, string, a paper cup, and some coins; build a bubble machine with cardboard boxes, Styrofoam, and wire; and much more. All experiments use inexpensive materials and involve a minimum of preparation and clean up. Children ages 8-12 Also available in the Spectacular Science Projects Series: * Janice VanCleave's Animals * Janice VanCleave's Earthquakes * Janice VanCleave's Electricity * Janice VanCleave's Gravity * Janice VanCleave's Magnets * Janice VanCleave's Molecules * Janice VanCleave's Microscopes and Magnifying Lenses * Janice VanCleave's Volcanoes * Janice VanCleave's Weather

The perfect science fair idea books . Spectacular Science ProjectsJanice Vancleave's Electricity * How do you make a battery out of a lemon? * Can a magnet produce electricity? * How does a flashlight work? Janice VanCleave's Electricity includes 20 simple and funexperiments that allow you to discover the answers to these andother fascinating questions about electricity, plus dozens ofadditional suggestions for developing your own science fairprojects. Learn about electric charges with a simple experimentusing modeling clay and a plastic straw; about voltage using abowl, paper towels, and a raw egg; about conductors with someclothespins, aluminum foil, and a flashlight bulb; and much more.All experiments are safe, use inexpensive household materials, andinvolve a minimum of preparation and clean up. Children ages 8-12Also available in the Spectacular Science Projects Series: JaniceVanCleave's Animals Janice VanCleave's Earthquakes JaniceVanCleave's Gravity Janice VanCleave's Machines Janice VanCleave'sMagnets Janice VanCleave's Molecules Janice VanCleave's Microscopesand Magnifying Lenses Janice VanCleave's Volcanoes JaniceVanCleave's Weather

How do plants make their own food? Why do the different strings on a guitar have differentsounds? What does the color of a star tell you about how hot the staris? What's the difference between gamma rays, X-rays, andmicrowaves? Now you can discover the answers to these and many otherfascinating questions about energy for yourself with thisfun-filled science resource. Packed with illustrations, JaniceVanCleave's Energy for Every Kid presents entertaining, challengingexperiments and activities to help you understand the differenttypes of energy--including heat, sound, electricity, and light--andhow they bring about change in the world around you. You'll developyour problem-solving skills as you create a "leaping frog" thatturns potential energy into kinetic energy, model sound waves witha Slinky?, use a balloon to demonstrate static electricity, make"sun" tea with solar energy, and much more! Each of the activities is broken down into its purpose, a list ofmaterials, step-by-step instructions, expected results, and aneasy-to-understand explanation. Plus, all projects have beenpretested so you can perform them safely and inexpensively in theclassroom, at a science fair, or at home! Also available in the Science for Every Kid series: ASTRONOMY BIOLOGY CHEMISTRY CONSTELLATIONS DINOSAURS EARTH SCIENCE ECOLOGY GEOGRAPHY GEOMETRY THE HUMAN BODY MATH OCEANS PHYSICS

How do honeybees find their way home? Why is Venus so hot? How can you measure the speed of the wind? What makes a sound loud or soft? Discover the awesome answers to these and other fascinating mysteries in biology, chemistry, physics, earth science, and astronomy. Just try these 201 fun, safe, low-cost experiments at home or in the classroom. You'll look through a drop of water to find out how a magnifying lens works. Using a Styrofoam ball, a pencil, and a lamp, you'll learn why the Moon appears and disappears. With just a jar and some ice cubes, you can demonstrate how rain is formed. Each experiment includes an illustration and easy to follow step-by-step instructions. This companion volume to the enormously popular 200 Gooey, Slippery, Slimy, Weird, and Fun Experiments brings together magical projects from Janice VanCleave's Science for Every Kid and Spectacular Science Projects series--plus 40 all-new experiments that make science come to life. Children Ages 8-12

A collection of science experiments and projects exploring molecules.

Profiles of some of history's greatest scientists-- and fun experiments that demonstrate their theories! Janice VanCleave's Scientists Through the Ages profiles the lives and work of more than twenty-five important thinkers in astronomy, biology, chemistry, earth science, and physics. This exciting book includes short biographies of the scientists, descriptions of their contributions to science, and simple experiments that reveal some of their most important discoveries. You'll meet scientists from every part of the world and every age, from Archimedes to Einstein, Galileo Galilei to Maria Mitchell, and Mary Anning to Marie Curie. Every experiment can be performed at home or in the classroom with safe, inexpensive materials. So find out how these famous scientists made life better for all of us, and start your own explorations with these fun and easy experiments!

The author's hands-on science books for kids ages 8 through 12 have set a new standard in science activity books. Children, parents, and teachers have come to love them for their dozens of illuminating illustrations, VanCleave's economical, friendly style, and above all, the hundreds of safe, low-cost experiments and activities that make learning scientific basics an exciting adventure.