CKLA Unit 1

CKLA Unit 5 Lesson 1

What is light?

Read page 2 to find out more about energy.

Open Ended

What do you think of when you think of something with a lot of energy?

Poll

"Believe it or not, light can be many times more energetic than a car or the wind." Did you find this fact surprising?

• Yes

• No

Read page 4 to yourself.

Multiple Choice

Which choice describes light's speed?

• Light travels at 18,600 miles every second.

• Light travels at 186,000 miles every second.

• Light travels 7 miles every second.

Open Ended

How does light compare to the speed of other things?

Multiple Choice

Can we see all kinds of light?

• Yes

• No

Read page 6 to find the answer to: What is white light?

Multiple Choice

What is white light?

• The type of light that you cannot see.

• The type of light that comes from the moon.

• The type of light that comes from the sun.

Read page 8 to find the answer to: What other sources of light can you think of beside the sun?

Open Ended

What other sources of light can you think of, besides the sun?

Read page 10 to find the answer to: What would Earth be like without the light and heat energy from the sun?