Search Results
Showing results 1 to 7 of 7
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-736.jpg?itok=BWWpSKeL)
Odors Aloft
Source Institutions
Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-114.gif?itok=sL8TInbx)
Changing Colors
Source Institutions
Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-739.jpg?itok=IKKyRfeE)
Pot-in-Pot Refrigeration
Source Institutions
In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-445.gif?itok=F7SHODkQ)
Balloon in a Flask
Source Institutions
Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-004.png?itok=qMj6A29m)
Starch Slime
Source Institutions
Learners mix liquid water with solid cornstarch. They investigate the slime produced, which has properties of both a solid and a liquid.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-834.jpg?itok=Rker1TXK)
All Mixed Up!
Source Institutions
In this activity, learners separate a mixture of pebbles, salt crystals, and wood pieces. They add water and pour the mixture through a strainer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-299.jpg?itok=lzQsLaWj)
Flubber: Make a polymer!
Source Institutions
This activity (on page 2 of the PDF) features a recipe to create the stretchy polymer Flubber from Borax detergent, white glue, and water.