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- Grade Range
- 6th - 8th
- Rating
Students conduct a simple experiment demonstrating the variable densities of corn syrup, water, glycerin, and vegetable oil. They examine cleanup methods used in the Exxon Valdez oil spill. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students explore the effects of salt on the density and buoyancy of a variety of mixtures. Floaters are created and placed in the saline solutions to investigate the mechanics of floating. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students compare the densities of several wood species using two different methods. Relative buoyancies and actual measurement values are utilized in this experience. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students consider density and how it affects sinking and floating. Students make predictions, test liquids, and observe why some liquids sink and others float. They perform experiments to determine relational causality and how liquids layer. They also apply relational causality to liquid layers. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students explore the causes of differences in density. Students choose objects, measure the mass and volume, and calculate the density of each. They perform additional density experiments to model atoms and their correspondence to atomic masses. Full Review »
- Grade Range
- 7th - 12th
- Rating
Students investigate density and its relationship to air and gas. Students perform experiments to determine if gases have mass. They explore possible ways to figure out the density of gases. Full Review »
- Grade Range
- Higher Ed
- Rating
Students watch the teacher do a demonstration of density with diet and regular soda. Note: try this first, as different types of artificial sweetener have different densities. Students discuss density and volume. They discuss "Relational Causality." Students use diagrams to show how heating a thermometer is similar and different to the soda can density experiment. Full Review »
- Grade Range
- 4th - 6th
- Rating
Students comprehend that density is a property of matter. They observe that fresh water floats on salt water. Students record observations of experiments with liquids. They infer that a sugar solution is more dense than water. Full Review »
- Grade Range
- 2nd
- Rating
Students watch a demonstration and complete an experiment to determine how an objects' density allows it to float or sink. They work in small groups to assimilate the characteristics of items that float as opposed to simply labeling them as heavy or light. They meet as a whole class to share the findings of their experimentation. Full Review »
- Grade Range
- 4th - 5th
- Rating
Students observe experiments in density and describe the results. In the experiment, milk, corn syrup, and oil are added in different orders to three glasses, while one other glass contains only water. As objects are dropped into each glass, students note in which liquids they floated and in which they sank. Once they conduct the experiments themselves in groups, students discuss their findings. Full Review »
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