FORMS OF ENERGY 4 th Grade Science Energy

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FORMS OF ENERGY 4 th Grade Science

FORMS OF ENERGY 4 th Grade Science

� Energy is the ability to work or cause change. � Work means moving

� Energy is the ability to work or cause change. � Work means moving an object form one place to another. � Energy makes things happen. � It can make matter move or change.

� Mechanical energy is the energy of moving objects. � Examples: moving your body,

� Mechanical energy is the energy of moving objects. � Examples: moving your body, riding a bike, gears moving in machines

� Light is energy that we can see. � Light energy comes from the

� Light is energy that we can see. � Light energy comes from the sun. � The sun, burning candle, lightbulb, and match give of energy in the form of light.

� Heat is energy moving from matter with a higher temperature to matter with

� Heat is energy moving from matter with a higher temperature to matter with a lower temperature. � Heat also travels to Earth from the sun. � Many things give off heat including wood burning, your body, and light bulbs. � Most things that give off heat also give off light.

� Sound is energy that we can hear. � Sound is made by objects

� Sound is energy that we can hear. � Sound is made by objects vibrating. � Sound energy moves through the air in waves. � When sound reaches your ears, the air in your ear vibrates. This makes your parts of your ear vibrate causing you to hear the sound.

� Vibrate means to move back and forth very fast. � All the sounds

� Vibrate means to move back and forth very fast. � All the sounds we hear are from vibrations.

� Chemical energy is energy that is stored in a material. � We use

� Chemical energy is energy that is stored in a material. � We use a lot of chemical energy by burning things such as coal, oil, and wood. � Our body burns the chemical energy store in food to keep us alive. � Batteries also store chemical energy.

� Electrical energy is the energy of moving electric charges. � Electrical energy moves

� Electrical energy is the energy of moving electric charges. � Electrical energy moves from power plants through wires to our homes and schools. � Electrical energy runs things such as lamps, refrigerators, computers, and toasters. � Lightning is also a form of electrical energy.

� Energy transformations are the changes from one form of energy to another. �

� Energy transformations are the changes from one form of energy to another. � Electrical energy can be changed into heat, light, sound, and mechanical energy. � Chemical energy can be changed into light, heat, mechanical, and electrical energy.

� This powerpoint was created using Microsoft Office 2007. All designs, slides, pictures, fonts,

� This powerpoint was created using Microsoft Office 2007. All designs, slides, pictures, fonts, and clipart where gathered from Microsoft Office 2007. � This powerpoint was created to go along with Lesson 18 of Tennessee TCAP Coach book, but could be used for any 4 th grade lesson on energy.

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