Search Results
Showing results 1 to 4 of 4
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-330.jpg?itok=ItPXDz8V)
Changing the Density of a Liquid: Adding Salt
Source Institutions
Learners see that a carrot slice sinks in fresh water and floats in saltwater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-940.jpg?itok=oJtz0wJN)
Good Vibrations
Source Institutions
In this activity, learners experiment with their voices and noisemakers to understand the connections between vibrations and the sounds created by those vibrations.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-329.jpg?itok=o0IWC_EZ)
Changing the Density of a Liquid: Heating and Cooling
Source Institutions
Learners investigate how the temperature of water affects its density.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-328.jpg?itok=o0rFbYSp)
Changing the Density of an Object: Adding Material
Source Institutions
Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.