Light and Shadows Review

Light is a form of energy that...

• helps you do work

• lets you see

• you can hear

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NGSS.4-PS4-2

Which of these casts a shadow by blocking light?

• a tree

• air

• the Sun

What objects can we see with no light?

• We can not see any objects with no light.

• We can see white objects.

• We can see mirrors with no light.

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NGSS.4-PS4-2

What makes light?

• the Sun and plants

• the Sun and flashlights

• people and plants

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Which gives off light?

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You walk into a very dark room. What can you use to make light?

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NGSS.4-PS3-2

Which gives off light?

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• 
• 

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An objects that is in a shadow...

• cannot be seen at all

• is in the direct light

• is being blocked from the light

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NGSS.4-PS4-2

The shadow cast by a windmill...

• never changes in length

• can change in length during the day

• can only be seen at night

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There are no shadows on a cloudy day because light is needed to make shadows.

• True

• False