In this osmosis activity, students read about how concentration gradients control osmosis and how this affects cells. Students complete 5 short answer questions based on the reading.
7th - 10th Science 63 Views 254 Downloads
How do Hypotonic, Hypertonic, and Isotonic Solutions Affect the Water Movement of a Cell?
After removing the shell from a raw egg, cell biologists soak the egg in either a hypotonic, hypertonic, or isotonic corn syrup solution. They calculate the percent change in mass and compare it to the strength of the solution in a...
7th - 12th Science
Cell Membrane & Transport
Young scientists demonstrate their understanding of cell transport on this comprehensive worksheet. Focusing on cellular structure and the different processes that allow materials to move into, out of, and throughout animal cells, this...
9th - Higher Ed Science CCSS: Adaptable
Cell Size and Shape; Diffusion and Osmosis Processes
Use salmon eggs as a cell model for demonstrating the movement of water over concentration gradients. Junior scientists examine the same process microscopically with an onion cell. They use a thistle tube and a semipermeable membrane to...
9th - 12th Science
WET Science Lesson #5: Pass the Salt Please! (How Road Salt Affects Wetlands)
As an anticipatory set, biologists listen to the story of Ruth Patrick, a scientist who used algae to detect water quality. They observe a demonstration of osmosis and diffusion. In their lab groups, they place Elodea stalks in...
7th - 12th Science
Correction to Sodium and Potassium Pump Video
This is a short correction to the video detailing pumping 3 sodium ions and 2 potassium ions. There is also a letter from a professor giving information about the ratio of 3 to 2 ions and how the concentration gradient is actually the...
7 mins 10th - 12th Science
The Motion of the Ocean
What drives the ocean's motion? Get your class moving toward understanding by using this video. Viewers find that thermohaline circulation is caused by the concentration gradients of temperature and salinity. Using adorable animation in...
5 mins 6th - 12th Science CCSS: Adaptable
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