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Fun with SCIENCE by Abe Beaker H O UG H T O N M IF F L IN H ARCO URT Fun with SCIENCE by Abe Beaker PHOTOGRAPHY CREDITS: Cover: Harcourt School Publishers; Title Page: Harcourt School Publishers; (b) Harcourt; (b) Harcourt School Publishers; (br) Harcourt School Publishers; (br) Harcourt School Publishers; 10 (b) Harcourt School Publishers All other photos © Houghton Mifflin Harcourt Publishers Copyright © by Houghton Mifflin Harcourt Publishing Company All rights reserved No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying or recording, or by any information storage and retrieval system, without the prior written permission of the copyright owner unless such copying is expressly permitted by federal copyright law Requests for permission to make copies of any part of the work should be addressed to Houghton Mifflin Harcourt School Publishers, Attn: Permissions, 6277 Sea Harbor Drive, Orlando, Florida 32887-6777 Printed in China ISBN-10: 0-547-25293-5 ISBN-13: 978-0-547-25293-3 0940 18 17 16 15 14 13 12 11 If you have received these materials as examination copies free of charge, Houghton Mifflin Harcourt School Publishers retains title to the materials and they may not be resold Resale of examination copies is strictly prohibited Possession of this publication in print format does not entitle users to convert this publication, or any portion of it, into electronic format A science fair is a good place to learn about science Students set up their projects at the fair Judges give an award certiicate or a trophy to students who have the best projects A winning project is educational and gives a lot of information Science fairs are fun You might see a presentation about a plant or animal Many science fairs take place every year But you don’t have to wait for the next fair You can have fun with science all year! You may have seen a model volcano at a science fair It looks impressive when something sprays out the top of the volcano You can make your own volcano at home or in class You can even make the kind that will erupt! This volcano was made by students your age It is not the kind that erupts First, get a clean plastic bottle Put it on a large baking pan Then use clay to make a volcano shape around the bottle Don’t build above the top of the bottle Be creative and add colors to your volcano Be careful not to get clay inside the bottle These boys are learning about volcanos Next, mix together one-half cup of vinegar, three drops of soap, and a teaspoon of red food coloring Pour the red mixture into the plastic bottle Quickly add three tablespoons of baking soda to the bottle Your volcano will erupt when you mix the baking soda and vinegar Together they make a gas As the gas rises to the top of the bottle, it pushes the red mixture over the sides This looks like the volcano is erupting You can experiments to learn about the world around you Experiment with static electricity Here is one experiment Rub a balloon on your hair Then lift up the balloon A balloon can teach you a lot about science You will see that your hair sticks to the balloon Rubbing the balloon against your hair caused electrical charges to build up on your hair and on the balloon If two things have the same kind of charge, they push away from each other If they have different charges, they pull toward each other The balloon and your hair have different charges, so they pull toward each other You can use different materials to experiment with balloons Static Electricity, Balloon Experiment Object Sticks For How Long? wall ✔ minutes Does Not Stick desk Keep track of your experiments in charts like this one Here is another balloon experiment Rub a balloon on a piece of fuzzy cloth Rub only in one direction Rub ten times Then hold the balloon up to a wall The balloon will stick to the wall Then rub the balloon on the cloth again Rub ten times Now hold the balloon up to your desk Keep track of whether it sticks or not Write down how long it sticks Tell your friends about your experiments Report your results to them Together you can have fun with science 10 Responding Word Builder What words you know that mean the same as creative? Copy this word web and add more words TARGET VOCABULARY artistic creative Write About It Text to Self You have just read about some fun science projects Write a paragraph about a creative science project that you would like to Include at least two words from the Word Builder in your description 11 TARGET VOCABULARY certificate charts creative educational erupt impressive presentation report Visalize As you read, use selection details to picture what is happening TARGET STRATEGY Which vocabulary word can you make if you rearrange the letters in starch? 12 Level: L DRA: 24 Science Strategy: Visualize Word Count: 433 3.3.12 Build Vocabulary HOUGHTON MIFFLIN Online Leveled Books 1387975 ... information Science fairs are fun You might see a presentation about a plant or animal Many science fairs take place every year But you don’t have to wait for the next fair You can have fun with science. . .Fun with SCIENCE by Abe Beaker PHOTOGRAPHY CREDITS: Cover: Harcourt School Publishers; Title Page: Harcourt... Tell your friends about your experiments Report your results to them Together you can have fun with science 10 Responding Word Builder What words you know that mean the same as creative? Copy