Search Results
Showing results 1 to 5 of 5
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-853.png?itok=N1HwXKwG)
Amphibian Skin
Source Institutions
In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-412.jpg?itok=aenbXsCu)
That's the Way the Ball Bounces: Level 1
Source Institutions
In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, size, and bounce height.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-626.jpg?itok=EbWy3w3R)
Elephant Foot
Source Institutions
Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-130.jpg?itok=UR5SVNwO)
The Shadow Knows I
Source Institutions
In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-281.png?itok=XYfbgMtv)
Scytale Messages
Source Institutions
In this activity, learners use a soda can to decode a secret message. Learners wrap scytale (pronounced ski-tally) code around a can and challenge friends to see if they can crack the codes.