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Bubbles in the Bathroom h T i s n i S e s e r l i es t i T Bubbles in the Bathroom Fizz in the Kitchen Shadows in the Bedroom Susan Martineau Bugs in the Garden c e n e E i x c p S erimen y a d y r ts Eve l e b s b i u n B t h a r B o o e m h t WINDMILL BOOKS™ Susan Martineau Everyday Science Experiments Bubbles in the Bathroom Susan Martineau Illustrated by Leighton Noyes with thanks to Kathryn Higgins, Head of Chemistry, Leighton Park School New York Published in 2012 by Windmill Books, An Imprint of Rosen Publishing 29 East 21st Street, New York, NY 10010 © 2012 b small publishing ltd Adaptations to North American Edition © 2012 Windmill Books, An Imprint of Rosen Publishing All rights reserved. No part of this book may be reproduced in any form without permission in writing from the publisher, except by a reviewer. Library of Congress Cataloging-in-Publication Data Martineau, Susan. Bubbles in the bathroom / by Susan Martineau. — 1st ed. p. cm. — (Everyday science experiments) Includes index. ISBN 978-1-61533-371-4 (library binding) — ISBN 978-1-61533-409-4 (pbk.) — ISBN 978-1-61533-471-1 (6-pack) 1. Water—Experiments—Juvenile literature. I. Title. GB662.3.M365 2012 507.8—dc22 2010052117 Manufactured in the United States of America CPSIA Compliance Information: Batch #BS2011WM: For Further Information contact Windmill Books, New York, New York at 1-866-478-0556 Contents How to Be a Scientist Bubble Fun Misty Mirrors A Magic Cup Float a Boat Water Fights Back Toothbrush Tricks Squeeze and Squirt Plug Power Wrinkly Skin Read More Glossary Index Web Sites Quiz Answers 4 6 8 10 12 14 16 18 20 22 24 24 24 24 24 How to Be a Scientist Scientists learn about the world around us by doing experiments. This book is full of experiments you can do in your bathroom. You won’t need any special equipment. You’ll probably have everything you’ll need at home already. Remember to ask a grown-up before using anything. Before you begin, always read through the whole experiment to make sure you have everything you will need. BE SAFE! Never play with the medicines or cleaning products you might have in your bathroom. 4 Take notes or draw pictures in a notebook. Keep records like a real scientist. You can make up your own experiments, too. Words to Know Special science words are explained on page 24. Be careful when you use the hot water. Make sure that it is not too hot. Quick Quiz answers are on page 24. 5 Bubble Fun A bubble bath is lots of fun. Have you ever wondered how those soapy bubbles are made? This experiment shows you how they form. 2. Pour a bit of bubble bath into the water. 1. Fill a sink halfway with water. 3. Put a straw into the water and blow! 6 Let’s Take a Closer Look! Quick Quiz! What’s the name of the soap we use to wash our hair? When you blow into the water, you make loads of bubbles. The bubble bath makes the water elastic, or stretchy, so that it holds the air you are blowing into it. If you blow into water without the bubble bath, the water on its own cannot hold the air. Did You Know? Always wash your hands after going to the bathroom to wash off any germs. Your skin never stops growing. When you wash yourself, soap loosens dirt from the skin and also washes away some dead skin. You might find that your fingertips feel smoother after washing your hands! 7 Misty Mirrors You can do this experiment the next time you take a bath or shower. It’ll make getting clean more fun! 1. Shut the bathroom door. Don’t lock it, though! 2. Run a nice warm bath or shower. 3. Watch wha