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- Grade Range
- 6th - 8th
- Rating
Students explore water density and design a hydrometer to measure density. This activity is part of Ocean World's home site and excellent resources and links are provided. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students use video, Internet research, graphs and tables, worksheets and hands-on experiments to investigate the properties of water in a lake environment. They work under direction or through an inquiry process. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students create observable layers in water that represent a separation based upon density differences. They model density boundaries using differences in temperature and salinity. They, in groups, perform a meaningful experiment illustrating salinity. Full Review »
- Grade Range
- 6th - 9th
- Rating
Students work together to identify the densities and viscosities of fluids. They participate in an experiment in which they create a rainbow with different water densities. They draw a sketch of the rainbow to end the lesson. Full Review »
- Grade Range
- 8th - 11th
- Rating
Students explore how density changes. Students read an article on density. They observe a ball and ring demonstration and discuss the outcome. Students draw models of the demonstration and explain what happened. Full Review »
- Grade Range
- 6th - 9th
- Rating
Students investigate the relationship between volume and mass in different liquids such as vegetable oil, rubbing lcohol and water. They measure the mass of several different volumes of each liquid and then graph the results as well as calculating the density of each liquid. 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
- 6th - 8th
- Rating
Students observe how different water densities control the depth at which different water masses occur. They explain one fact that they comprehend about salt water. Students comprehend that temperature and salinity affect the density of the water. They also comprehend that ocean salinity differs by small numbers, so oceangraphers are accurate when measuring salinity. Full Review »
- Grade Range
- 10th - 11th
- Rating
Students identify and analyze the concept of density using the formula, density equals mass divided by volume. They review the differences in salinity levels of the ocean and note that the changes in density are caused by wind and currents at the surface. Finally, students complete an experiment comparing salty water to tap water and recording their observations. Full Review »
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