By Grace Hansen
Those animal proof are certain to make with reference to every person smile and infrequently cross ""awwwe!"" Little readers will examine a lovely or humorous truth approximately a few of their favourite animals. a colourful, full-bleed picture will accompany each one truth and may definitely allure reluctant readers too. entire with a desk of contents, word list, index, or even extra proof!
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Extra resources for Animal Facts to Make You Smile!
THE SCIENCE BEHIND THE MAGIC As the water boiled, it produced steam. The steam forced air out through the top of the can, replacing most of the air that had filled the can before. The steam-filled can was closed before the steam could condense. As the steam condensed, the pressure inside the can decreased because liquid water takes up less space than steam. Meanwhile, the pressure of the air pushing on the outside of the can remained unchanged. Because the pressure on the outside of the can became much greater than the pressure on the inside, the can collapsed.
Many experiments include ideas you can use for your science fair. About the Author ROBERT GARDNER is an award-winning author of over one hundred books for young people. He is a retired high school teacher of physics, chemistry, and physical science. 3: A Balloon in a Bottle or a Rocket Launcher? 7: How Does the Speed of a Falling Object Change? Materials: Science Fair Project Idea Chapter 5: Projectiles, Swings, Slides, Seesaws, and More! 1: What Is a Projectile? 3: Speed and Running Surface Materials: Science Fair Project Idea Further Reading Internet Addresses Index Note to Our Readers Copyright More Books from Enslow INTRODUCTION When you hear the word science, do you think of a person in a white lab coat surrounded by beakers of bubbling liquids, specialized lab equipment, and computers?
What remained on the paper were the clearly visible blue crystals of anhydrous (without water) cobalt chloride (CoCl2). With time, the blue crystals will react with moisture in the air and re-form pink hydrated crystals. Sodium chloride (NaCl), which is ordinary table salt, is not an organic compound (it has no carbon). Consequently, heating dried salt would not produce a visible message. However, when you rub the soft graphite pencil over the letters you have written in saltwater, the graphite adheres to the paper but not to the NaCl.