Floating in the Great Salt Lake: A Density Experiment
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.
5th - 8th Science 5 Views 44 Downloads
Investigating the Effect of Salinity on the Density and Stability of Water
Water with varying amounts of dissolved salt are dyed and then used to compare densities. The objective is to discover the effect of salinity, and therefore density, on ocean water on the stability of the ocean. Many branches of science...
6th - 8th Science
Changing the Density of a Liquid - Adding Salt
Fourth in a set of several little lessons on density, this one compares the density of fresh and salt water. First by demonstration, and then by a hands-on activity, learners find that adding salt increases the density, as is evidenced...
3rd - 8th Science
New Review The Buoyancy Challenge!
Check out a lesson plan that starts with force of gravity and moves through the concepts of mass, weight, volume, and density. Learners calculate density, test the buoyancy of objects, and then demonstrate understanding by altering the...
7th - 9th Science CCSS: Adaptable
Changing the Density of an Object - Adding Material
In this sixth of seven activities revolving around the concept of density, physical science fans figure out if anything can be done to change the density of an object. Demonstrate by placing a can of regular and a can of diet soda into a...
3rd - 8th Science
Winter Advisory: The Effect of Salt on the Freezing Point of Water
Why do we salt roads when they have ice on them? Middle school physical scientists experiment to find out that salt lowers the freezing point of water. This classic lab experiment has a practical application and is also designed to meet...
6th - 8th Science CCSS: Designed