Materials: 2 clear bowls, water, salt, 2 sets of similar objects (shells, pebbles, etc.)

Hypothesis: More items will float in salt water than in fresh water.  Tip: Salt makes the water denser.

Procedure: In bowl one, dissolve 1/2 cup salt in 1 1/2 cups of hot water. In bowl two, put 1 1/2 cups of plain water. Drop similar objects into each bowl at the same time. Record your observations. Is the hypothesis true? Why or why not?

Conclusion: Talk about your findings.