Search Results
Showing results 1 to 8 of 8
![](/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-000-000-001-932.gif?itok=MNmkjq5g)
Hidden Alarm
Source Institutions
In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is small enough to hide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-244.jpg?itok=_bdaHa4z)
Chemistry Is Colorful
Source Institutions
In "Chemistry is Colorful" learners explore different materials through paper chromatography.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-899.jpg?itok=Zjm3-Xig)
Sticky Snot
Source Institutions
In this activity, learners create slime to model mucus and examine how it collects simulated particles. Mucus keeps particles from the environment out of our lungs when we breathe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-293.png?itok=UwPnlQbF)
Electroscope
Source Institutions
In this activity, learners make an electroscope out of a foam cup, straw, aluminum pie pan, thread, and foil. Learners use their electroscopes to test for static electricity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-000.png?itok=YWz9q2rH)
Another Bright Idea!
Source Institutions
In this activity on page 5 of the PDF, learners use their knowledge of energy and batteries to create homemade flashlights.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-034.png?itok=73WAe8tX)
Safe in the Sun
Source Institutions
In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-294.png?itok=juOgmbpU)
Periscope
Source Institutions
In this optics activity, learners build a spy tool to secretly view things over walls or around corners.