What's the BIG Idea?: Amazing Science Questions for the Curious Kid

By Vicki Cobb

Why don't we feel the Earth move? Why does an ice cube float? Why can't you unscramble an egg? Why can't we live forever? These are all questions that a curious kid might ask. In What's the BIG Idea?, renowned juvenile science educator Vicki Cobb answers these and other fascinating questions to help kids learn more about the world through the wonders of science.

A big idea is one that has no simple or easy answer, and there are four big ideas in this book: motion, energy, matter, and life. The motion of nonliving objects—rolling balls, falling stones, the moon and stars—seems so ordinary and familiar that most people take it for granted. Matter, on the other hand, comes in so many different forms—solids, liquids, gases, metals, nonmetals, living material—that it is hard to imagine anything that all matter has in common. Energy is an idea that is in the news just about every day, yet most people couldn't tell you what the big idea of energy is. And life—what life is—seems mind-boggling and infinitely complicated. How do we bend our brains around it?

Scientists learn by asking questions. And this book, now in paperback, is designed to make young readers stop and think about each of the questions before reading what scientists have learned that answers each question. They'll be able to do simple things to see for themselves, and they will build their own scientific knowledge in the process. By the time they've finished this book, they'll get the big picture of what science is all about.

• Language: English
• Publisher: Sky Pony
• Release date: Sep 1, 2013
• ISBN: 9781626365001

Vicki Cobb

Vicki Cobb is the author of many award-winning science books for young people. With degrees from Barnard College and Columbia University Teachers College, Vicki enjoyed an early career as a science teacher. She now devotes all her time to writing and speaking to teachers, children, and librarians all over the country. She frequently writes for the Huffington Post and is also the founder and president of iNK Think Tank, an organization dedicated to getting high-quality nonfiction books into classrooms. To find out what recent science experiment Vicki has been cooking up, visit her online at www.vickicobb.com. 

Book preview

WHAT’S

THE

BIG

Idea?

Also by Vicki Cobb:

Bangs and Twangs: Science Fun with Sound

Feeling Your Way: Discover Your Sense of Touch

Follow Your Nose: Discover Your Sense of Smell

Harry Houdini: A Photographic Story of a Life

How to Really Fool Yourself

Light Action! Amazing Experiments with Optics

Marie Curie: A Photographic Story of a Life

Open Your Eyes: Discover Your Sense of Sight

Perk Up Your Ears: Discover Your Sense of Hearing

Science Experiments You Can Eat

Sources of Forces: Science Fun with Force Fields

Squirts and Spurts: Science Fun with Water

We Dare You! Hundreds of Fun Science Bets, Challenges, and Experiments

You Can Do at Home

Where’s the Science Here? Fireworks

Where’s the Science Here? Junk Food

Where’s the Science Here? On Stage

Where’s the Science Here? Sneakers

Whirlers and Twirlers: Science Fun with Spinning

Your Body Battles a Broken Bone

Your Body Battles a Cavity

Your Body Battles a Cold

Your Body Battles an Earache

Your Body Battles a Skinned Knee

Your Body Battles a Stomachache

Your Tongue Can Tell: Discover Your Sense of Taste

WHAT’S THE

BIG IDEA?

Amazing Science Questions

for the Curious Kid

VICKI COBB

Sky Pony Press

New York

Copyright © 2010 by Vicki Cobb

First Sky Pony Press edition, 2013.

All Rights Reserved. No part of this book may be reproduced in any manner without the express written consent of the publisher, except in the case of brief excerpts in critical reviews or articles. All inquiries should be addressed to Sky Pony Press, 307 West 36th Street, 11th Floor, New York, NY 10018.

Sky Pony Press books may be purchased in bulk at special discounts for sales promotion, corporate gifts, fund-raising, or educational purposes. Special editions can also be created to specifications. For details, contact the Special Sales Department, Sky Pony Press, 307 West 36th Street, 11th Floor, New York, NY 10018 or [e-mail].

Sky Pony® is a registered trademark of Skyhorse Publishing, Inc.®, a Delaware corporation.

Visit our website at www.skyponypress.com.

10 9 8 7 6 5 4 3 2 1

Manufactured in China, March 2013

This product conforms to CPSIA 2008

ISBN: 978-1-62087-685-5

The Library of Congress has cataloged the hardcover edition as follows:

Cobb, Vicki.

What’s the big idea? : amazing science questions for curious kids / Vicki Cobb.

p. cm.

ISBN 978-1-61608-013-6 (hardcover : alk. paper)

1. Science--Miscellanea--Juvenile literature. I. Title.

Q163.C688 2010

500--dc22

2009046866

CONTENTS

What’s a Big Idea?

Big Idea: Motion Is Not What It Appears to Be

Why Does a Rolling Ball Stop Rolling?

How Do We Know the Earth Is Moving When It Looks Like the Sky Is Moving?

If the Earth Is Spinning, Why Don’t We Feel It Move?

Which Falls Faster, a Bowling Ball or a Marble?

Why Can’t You Stand an Egg on Its End?

Why Doesn’t the Moon Fall to Earth?

We Say That an Apple Falls Down to Earth. Why Doesn’t the Earth Fall Up to the Apple?

Which Takes Longer, a Big, High Swing or a Small, Low Swing?

What Is a Swinging Object Good For?

Big Idea: Energy Is Part of Everything

What Does It Take to Move a Piano?

How Is a Wound-up Spring Like the Top of a Waterfall?

Do Hot Things Weigh More Than Cold Things?

Does Water That Boils Faster Cook Faster?

How Does a Pot Holder Work?

Why Is the Sky Blue? Why Not Green or Yellow?

Who Ever Heard of Light You Can’t See?

What Does Energy Weigh?

Why Doesn’t the Sun Burn Out?

Big Idea: Matter Is Made of Simpler Stuff

Which Weighs More, a Pound of Feathers or a Pound of Gold?

How Can You Make Gold?

Why Does an Ice Cube Float?

How Much Does Air Weigh?

Why Don’t You Feel Air Pressure?

How Is Warm Air Different from Cold Air?

Why Isn’t the Earth Egg-Shaped or a Cube?

How Does Wood Burn?

Why Can’t You Unscramble an Egg?

Big Idea: Motion, Energy, and Matter Make Life Possible

What Makes a Living Thing a Living Thing?

What Is the Smallest Living Thing?

Why Are Plants Green?

Why Is Blood Red?

How Are All Living Things Alike?

What Makes a Pea Plant a Pea Plant, a Fruit Fly a Fruit Fly, and a Person a Person?

Why Can’t I Live Forever?

How Long Can We Live?

Scientific Terms

Index

For Further Reading

About the Author

WHAT’S A BIG IDEA?

Abig idea is one that has no simple or easy answer. There are four big ideas in this book: motion, energy, matter, and life. The motion of nonliving objects—rolling balls, falling stones, the moon, and stars—seems so ordinary and familiar that most people take it for granted. Matter, on the other hand, comes in so many different forms—solids, liquids, gases, metals, nonmetals, living material—that it is hard to imagine what any of these forms have in common. Energy is an idea that is in the news just about every day, yet most people couldn’t tell you what the big idea of energy is. And life—what life is—seems mind-boggling and infinitely complicated. How do you bend your brain around it?

Science tackles big ideas. How? The same way you eat an elephant: one bite at a time. Science goes after big ideas by asking simpler questions that can be answered by doing something. If you ask a scientist, How do you know? a scientist doesn’t say, I just know, or Everyone knows, or I read it someplace. A scientist says, This is what I did. If you do what I did, you’ll know what I know. In other words, scientists answer their questions