Activity 4

Directions: Crossword puzzle. Fill in the box with the letter that corresponds to your answer.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

ACROSS
1 - some light passes through the object

5 - fastest medium for sound travel

7 - no light passes through the object

8 - example of a conductor

10 - emission of light from its

Down
2 - produced due to the vibration of particles in an object

3 - light completely passes through the object

4- a medium where sound moves very slowly.

6-movement occurs due to the rising of hot materials paired with sinking cold materials.

9 - example of an insulator

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