SA.3.2ºEP. A WORLD OF ENERGY.

What is light?

• Light is a form of energy that allows us to see the world around us.

• Light is a form of energy. It starts with a vibration that produces waves.

• Light is a form of food with a lot of nutrients.

What sources of light are natural?

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__________ sources of light are made by humans, like a torch or a candle.

• natural

• artificial

• resistant

• opaque

Light travels in:

• curve line

• straight line

TRUE OR FALSE?

Light can pass through opaque objects.

• TRUE

• FALSE

TRUE OR FALSE?

Light can't pass trough transparent objects.

• TRUE

• FALSE

What is sound?

• Sound is a form of music. I can hear with my ears.

• Sound is a form of energy. It starts with a vibration that produces waves.

Sound waves can go through...

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• 
• 
• 

What are renewable sources of energy?

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Non contact forces are:

• Magnetic force

• Push

• Gravitational force

• Pull