Understanding Light and Its Importance

What is the central idea of the passage?

• Light is a source of entertainment.

• Light is a form of energy that supports life, vision, and many natural processes.

• Light is only important for plants.

Tags

CCSS.RI.6.2

CCSS.RI.8.2

CCSS.RL.7.2

CCSS.RL.8.2

CCSS.RL.6.2

Which detail best supports the central idea?

• Light is visible to the human eye.

• Plants use sunlight to make food through photosynthesis.

• Light comes in many forms, including visible and invisible types.

Tags

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.7.2

CCSS.RL.6.1

CCSS.RL.7.1

What is the main idea of the first section of the passage?

• Light is a form of energy.

• Light is essential for life and helps regulate Earth’s temperature.

• Light is only important for photosynthesis.

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.7.2

CCSS.RL.8.2

What is the main idea of the section titled 'Light and Electromagnetic Radiation'?

• Light is only visible to humans.

• Light is part of the electromagnetic spectrum and exists in many forms that humans cannot see.

• Light is only important for vision.

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.8.2

CCSS.RL.6.2

What does the word bioluminescent most nearly mean?

• Objects that reflect light.

• Living things that produce their own light.

• Artificial sources of light.

Tags

CCSS.RI.6.4

CCSS.RI.8.4

CCSS.RL.6.4

CCSS.RL.7.4

CCSS.RL.8.4

Which object is considered luminous?

• The Moon.

• A mirror.

• A lightbulb.

Why can the Moon be seen from Earth?

• It produces its own light.

• It reflects light from the Sun.

• It glows due to heat.

Which example shows incandescent light?

• Bioluminescent animals.

• Glowing electric filaments and hot burners.

• Reflected light from the Moon.

Which of the following is NOT a source of natural light?

• A flashlight.

• Fireflies.

• The Sun.

What is the main function of light for plants?

• To help them move.

• To produce food through photosynthesis.

• To keep them warm at night.