Search Results
Showing results 1 to 20 of 201
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-090.jpg?itok=RHSatcdy)
Dripping Wet or Dry as a Bone?
Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-379.jpg?itok=CA2quisG)
Highway Seismograph
Source Institutions
This is an activity that models the operation of a seismograph, a tool used to measure the size of earthquakes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-989.jpg?itok=31BVjoBi)
Public Key Encryption: Kid Krypto
Source Institutions
In this activity, learners conduct a simulation exercise related to public key encryption and try to intercept a message sent between two learners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-651.jpg?itok=C4X5DdHl)
Battleships: Searching Algorithms
Source Institutions
This activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-777.jpg?itok=XTHNFAgI)
The Scoop on Habitat
Source Institutions
Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-944.jpg?itok=Gl2T_6Ve)
Design For All: Project Playground
Source Institutions
In this design challenge, learners will practice empathy and design thinking skills by creating a play space that is fun, both for themselves and other kids.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-839.png?itok=S3Fockxd)
Soccer
Source Institutions
In this math activity (Page 12 of the Play Ball! PDF), learners play a game of "soccer" and analyze the results of the game.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-691.jpg?itok=R2aX9Luq)
Marble Game
Source Institutions
In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-333.jpg?itok=LfEYC6s_)
Defining Density
Source Institutions
In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-652.png?itok=7Y7WKinv)
Twenty Guesses: Information Theory
Source Institutions
This activity introduces the idea that computer scientists measure information by how "surprising" a message is.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-578.jpg?itok=YSS4r3Hs)
Funny Putty
Source Institutions
In this chemistry activity (page 1 of PDF SciGirls Activity: Milk Carton Boat), learners will create a blob of stretchable funny putty out of a water, borax, and glue mixture.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-440.gif?itok=sL69jLTo)
Launch It
Add to list DetailsIn this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-277.jpg?itok=X_8_m8P1)
Electric Paddle Boat
Source Institutions
In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-838.png?itok=FzI-pXXr)
Basketball
Source Institutions
In this math activity (Page 14 of the Play Ball! PDF), learners play a game of "basketball" and analyze the results of the game.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-125.jpg?itok=FtbZoQla)
How Far?
To learn how friction affects motion, learners build a measurement tool from a rubber band and other simple materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-486.jpg?itok=SG3AxPqq)
Radioactive Decay of Candium
Source Institutions
In this simulation, learners use M&M™ candy to explore radioactive isotope decay.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-370.jpg?itok=PJQsDOP7)
Dry Ice Comet
Source Institutions
In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-126.jpg?itok=WdRWIPgQ)
Hovercraft Racers!
Learners build a simple hovercraft using air from a balloon to levitate a craft made from a compact disc (CD).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-641.jpg?itok=-EH2upZh)
Spaghetti Bridge
Source Institutions
In this engineering activity, learners investigate the differences between the strength of bridges made from flat and round building materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-625.jpg?itok=ZI-YkRw1)
Mega Bounce
Source Institutions
In this outdoor activity (on page 2 of the PDF under GPS: Baseball Activity), learners will investigate the transfer of energy using sports equipment.