Science 5: The way we see

Which of these are examples of natural light sources?

• Sun

• Stars

• Lightning

• All of them

Which of these are examples of man-made light sources?

• Lightbulb

• Neon sign

• Television

• All of them

A line that light travels in is called a _________

• light source

• light ray

• light wave

• light reflected

You are enabled to see objects because _________________.

• light travels out of your eyes and onto an object.

• light travels out of an object.

• light reflects off of an object and into your eyes.

• light brightens up objects.

What is light?

It is a form of energy that _______________.

• enables us to see

• makes us warm

• helps object to move

• protects Earth from heat

Which of these is our main source of light?

• Lightbulbs

• The Sun

• Fire

• All of them

This insect is a natural source of light. Can you tell what insect it is?

• Mosquito

• Dragon fly

• Fire fly

• Beetle

Tags

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Which of the living thing below doesn't produce own light?

• 
• 
• 
• 

Light always travels in a ____________ line.

• straight

• curved

• elliptical

• none

The intensity of the light can be measured using a _______________.

• intensity

• volt meter

• stop watch

• light meter