MOVING MOLECULES

HYPOTHESIS

If an object is sitting still, what are its molecules doing?

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1 Clear Glass
Warm Tap Water
Cold Tap Water
Food Color
Stopwatch or Clock

1. Fill the glass with cold water.

2. Put the glass on your desk and wait until the water is very still. Be careful not to bump your desk.

3. Once the water is stilll, put 2-3 drops of food color into the water. Be careful not to bump or move the glass.

4. Time how long it takes all of the water to change color. ________

5. Rinse out the glass and fill it half way with warm water.

6. Repeat the test above and record how long it takes for all of the warm water to change color. ________

How can you explain what happened to the food color?

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