How Light Travels (Part 2)

What You'll Learn

Light travels in straight lines and can be reflected, refracted, or absorbed. Mirrors reflect light, lenses refract (bend) light, and dark surfaces absorb light.

Key Words

data
observation
experiment

Materials Needed

pennies
plastic wrap
cardboard

Safety First

Work in a well-ventilated area when using vinegar or other strong-smelling substances.

Steps

Step 1 — Read

Read and learn: Light travels in straight lines and can be reflected, refracted, or absorbed. Mirrors reflect light, lenses refract (bend) light, and dark surfaces absorb light.

Step 2 — Do

Measure and record your data in a table.

Step 3 — Observe

Compare the before and after states.

Step 4 — Record

Write your conclusion: did the results match your hypothesis?

Check Your Understanding

Question 1

1 of 3

What is sound?