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- Grade Range
- 9th - 12th
- Rating
Students explore the difference between osmosis and diffusion in the movement of molecules in a liquid environment. Full Review »
- Grade Range
- 6th - 12th
- Rating
Students predict the net movement of molecules across a semipermeable membrane, and define what molecules move during osmosis. They conduct experiments to support the statement that all molecules are in motion. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students examine the process of osmosis and salt regulation in marine animals. Working in groups, they visit experiment stations and place potato slices into different salt solutions. After examining freshwater plant cells under a microscope, they compare them before and after saltwater has been added. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students discuss diffusion and osmosis as they relate to how food, oxygen and other necessary substances move into a cell. They determine how waste products move out of the cell. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate osmosis as they determine how carrot cells respond to two different environments. They conduct the experiment, record the data, and answer discussion questions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate the problem of osmosis by conducting an experiment. They use eggs with the shells dissolved to tell whether fluid can move across the membranes. The experiment provides high interest for all kinds of students to keep them engaged using the hands-on activity. Full Review »
- Grade Range
- 12th - Higher Ed
- Rating
Students explore principles governing diffusion and osmosis. Students perform a dialysis tubing experiment. They obtain core samples of potato in varying concentrations of sugar-water to measure water potential of the potato cells. Data is collected and analyzed by using the Texas Instruments 82 graphing calculator. Students graph results. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate the scientific concept of diffusion and osmosis with the help of dialysis tubing. They conduct an experiment to see if molecules cross a semipermeable membrane. The diffusion is measured and the data is recorded and determined if it supports the hypothesis. Full Review »
- Grade Range
- 7th - 10th
- Rating
Students explore diffusion and active transport. They observe the effects of eggs in vinegar and predict what will happen when eggs are placed in corn syrup with food coloring. Students complete worksheets which lead them to describe the movement of molecules in and out of cells as they identify osmosis, diffusion, and active transport. Full Review »
- Grade Range
- 5th - 9th
- Rating
Students observe osmosis using a gummy bear to represent a cell. They place gummy bears in different types of water and take measurements the next day. In addition, they calculate the difference in measurements. Full Review »
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