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To explore the different densities of several solids and liquids.
How do the densities of the solids compare to the densities of the liquids? Will the solid objects sink, float, or be suspended in each of the liquids? How do the densities of the liquids compare with each other?
Write your prediction of what will happen when you place a grape, paper clip, small cork, penny, marble, and washer into each of the four different liquids. Will they sink, float, or be suspended?
1. Place paper towels on work surface
2. Add 150 mL water to first beaker
3. Add 150 mL vegetable oil to second beaker
4. Add 150 mL corn syrup to third beaker
5. Add 150 mL alcohol to fourth beaker
Add cork pieces to each beaker and observe if they sink, float, or become suspended. Record observations. Repeat with pennies, grapes, paper clips, marbles, washers, and ice cubes.
| Object | Water | Vegetable Oil | Corn Syrup | Alcohol |
|---|---|---|---|---|
| Cork | ||||
| Penny | ||||
| Grape | ||||
| Paper Clip | ||||
| Marble | ||||
| Washer | ||||
| Ice Cube |
Add food coloring to water and alcohol. Slowly pour liquids into quart jar in order: corn syrup, water, vegetable oil, alcohol. Let settle and record observations.