Understanding Light

Which of the following is NOT a source of light mentioned in the video?

• Fireflies

• Fire

• Electric light bulbs

• The moon

What did Sir Isaac Newton discover about sunlight?

• It is not visible to the human eye

• It is made up of only one color

• It can be split into a rainbow of colors

• It travels slower than sound

Which color is NOT part of the rainbow formed by sunlight?

• Violet

• Cyan

• Indigo

• Red

How fast does light travel through the air?

• 186,000 miles per hour

• 186,000 miles per second

• 186,000 kilometers per hour

• 186,000 kilometers per second

What process do plants use to make food using sunlight?

• Chemosynthesis

• Respiration

• Fermentation

• Photosynthesis