Energy Changes Correlation Fountas & Pinnell P DRA 38 Estimated Lexile Measure 760 Written Under Funding from Monroe 2–Orleans BOCES: June 2007 By

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Sound Unit Energy Changes Correlation Fountas & Pinnell P DRA 38 Estimated Lexile Measure 760 Written under funding from Monroe 2–Orleans BOCES: June 2007 by:

Fred Arnold, Science Resource Teacher Sue Witter, Reading Specialist

10/13 Copyright 2007 by the Board of Cooperative Educational Services for the Second Supervisory District of Monroe and Orleans Counties, Elementary Science Program. All rights reserved. This publication may only be reproduced for one-time classroom use. No part of this publication may be stored in a retrieval system, or transmitted or reproduced, in any form by any means, electronic, mechanical photocop ying, recording, or otherwise, without the prior written permission of Monroe 2–Orleans BOCES, Elementary Science Program.

Elementary Science Program www.espsciencetime.orgwww espsciencetime or Energy Changes In the activities of this unit, try to trace the sound back to the mechanical energy that Energy is all around us. You can‛t hold energy was changed into sound waves. That means, try to in your hands. You can see what energy does. In ﬁ gure out what was vibrating to make the sound the story you read in your student activity book, energy you hear. The difference between one Darrell said that energy can make matter move sound and another comes from the differences or change. He listed different forms of energy between the two vibrating objects that made – light, heat, sound, electrical, mechanical, and the sounds. chemical. We use some of these forms of energy every day.

A Vibrating String Bass

2 7 When someone drives a car or runs a gas We use heat energy for cooking. We use powered lawn mower, the gasoline burns in the electrical energy for powering computers, engine. The engine changes the chemical energy refrigerators and microwave ovens. We use of the burning gas into mechanical energy to mechanical energy when we ride a bicycle or move the car or mower. sharpen a pencil. We use light energy to grow plants for our food. We use sound energy to Part of learning about sound entertain us when we listen to music. energy is learning about energy transformation. When an object vibrates, you can see mechanical energy in action. When you hear sound from the vibrating object, you are hearing mechanical energy that has changed into sound energy.

6 3 Energy can be changed from one form to When someone lights a birthday candle, the another. An energy change is called an energy chemical energy stored in the candle changes to transformation. Energy transformations can light energy and heat energy. be very useful. For example, when natural gas goes through a chemical change in a furnace or barbecue grill. The chemical energy in the gas is light energy changed to heat energy that keeps us warm or cooks our food. chemical energy Can you think of other energy transformations that are helpful? Can you think of an example of electrical energy changing When you turn on an electric fan, you use to light energy? electrical energy to power the fan‛s motor. The motor changes electrical energy into movement. light energy Movement is mechanical energy.

electrical energy mechanical energy

electrical energy

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