![Lenny and Lexie wearing eclipse glasses](/sites/default/files/2024-03/lexie%20eclipseheader.png)
Lenny and Lexie Get Ready for a Solar Eclipse
Hands-on Activities
Help Lenny and Lexie get ready for a solar eclipse using your unplugged coding skills.
![Child using box eclipse viewer](/sites/default/files/2024-02/Eclipse_viewer_header.jpg)
Three Ways to Make a Solar Eclipse Viewer
Hands-on Activities
Safely view a solar eclipse by making and using a pinhole solar eclipse viewer.
![Solar storm impacting satellite](/sites/default/files/2023-12/space-weather_handson-header.jpg)
How can you adapt communications to overcome interference?
Hands-on Activities
Challenge yourself to communicate through a simulated geomagnetic storm.
![Hiker filling a water bottle](/sites/default/files/2023-12/water-filter-header.jpg)
How can you design the least “expensive” water filter?
Hands-on Activities
Challenge yourself to design the best filter for the lowest cost!
![Spiral staircase](/sites/default/files/2023-12/spiral-staircase-header.jpg)
Designing with the Fibonacci Sequence
Hands-on Activities
Create a design that uses the Fibonacci sequence.
![Cartoon bacteria through a magnifying glass](/sites/default/files/2023-12/Design-your-own-bacteria.png)
Design your own bacteria!
Hands-on Activities
How could you design a new type of bacteria that helps people?
![Geometric artificial brain with chip, gears and circuit board](/sites/default/files/2023-12/AI%20db%20header.jpg)
How can you train a machine learning system?
Hands-on Activities
Create a set of rules that a machine learning system could use to identify a specific icon from an icon library.
![Image of a windmill with a cloudy sky in the background.](/sites/default/files/2023-12/windmill_header.jpg)
How could you design a wind-powered elevator?
Hands-on Activities
Design a device that uses the power of wind to lift a small object.
![Vaccine cooler bag](/sites/default/files/2023-12/medicine_cooler.jpg)
How can you design an insulated container?
Hands-on Activities
How can you design a container that keeps something cold?
![SIlhouette of a figure examining stars with a telescope](/sites/default/files/2023-01/physics%20chapter%20header.jpg)
How could you build a refracting telescope using water as the lenses?
Hands-on Activities
Build your own refracting telescope using glasses of water as the lenses.
![Glowing blue padlock among lines of binary code](/sites/default/files/2023-01/personal%20info%20header.jpg)
How can you protect your personal information?
Hands-on Activities
Protect your personal information with different types of encryption.
![Simple computer icons](/sites/default/files/2023-01/computer%20icons.jpg)
Can you design icons for different screens?
Hands-on Activities
Use pixels to design an icon in two sizes.
![Rover on the Moon](/sites/default/files/2023-01/Earth%20moon%20rover.jpg)
Can you design a rover that can survive on the moon?
Hands-on Activities
Design a lunar rover that can survive in the moon’s extreme environment.
![Tree stumps](/sites/default/files/2023-01/deforestation.jpg)
How would you replant a forest?
Hands-on Activities
Design a device that can plant seeds or trees to help grow a forest.