1 Across.

a form of energy that you can see

• light

• sound

• heat

6 Across.

to take in

• reflect

• shadow

• absorb

7 Across.

a curved lens that makes objects appear bigger

• prism

• convex lens

• concave lens

8 Across.

not allowing any light to pass through

• transparent

• translucent

• opaque

10 Across.

lets light pass through

• translucent

• transparent

• opaque

1 Down.

an object that refracts light

• prism

• shadow

• lens

2 Down.

a transparent object that separates white light into all the colors of the rainbow

• prism

• shadow

• lens

3 Down.

allows only some light to pass through

• transparent

• translucent

• opaque

4 Down.

to bend

• reflect

• refract

• absorb

5 Down.

to bounce off

• refract

• absorb

• reflect