Search Results
Showing results 1 to 20 of 42
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-086.jpg?itok=cwXOZ2Ci)
Acid (and Base) Rainbows
Learners use red cabbage juice and pH indicator paper to test the acidity and basicity of household materials. The activity links this concept of acids and bases to acid rain and other pollutants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-946.jpg?itok=Hh2ajG4b)
Linkages
Source Institutions
This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-692.jpg?itok=_x-qgMJt)
Magnetic Spinner & Compass
Source Institutions
Learners use shop tools and various materials to construct a magnetic spinner and a compass.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-875.jpg?itok=j-K13Azk)
A Place in Space
Source Institutions
Learners construct and use a "real" 3D coordinate system out of balsa wood and foam core. They will then be able to locate coordinates in space.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-027.jpg?itok=F82eZ01h)
The Carbon Cycle and its Role in Climate Change: Activity 3
Source Institutions
In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-912.gif?itok=3vWTsPFA)
Four Corners
Source Institutions
In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-489.jpg?itok=YZSX8DJ-)
Seed Orbs
Source Institutions
In this activity, learners will make seed orbs to grow new trees and plants. Learners will explore ecology and life cycles as well as stewardship through this activity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-679.png?itok=Cbpxun1y)
Build a Battery
Source Institutions
Learners make a simple battery out of "sandwiches" of aluminum foil, pennies, and a salt water-soaked paper towel.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-678.jpg?itok=sBy1clYj)
In the Toilet
Source Institutions
This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-958.jpg?itok=p4Tz2_th)
You Can't Take It With You
Source Institutions
This activity models the necessary balance of creating power and cleaning up its associated waste. Learners participate in a game where they attempt to move forward toward a goal.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-896.jpg?itok=Esep6R0o)
Construction Technologies: Construct the Strongest Bridge
Source Institutions
Learners work in pairs to create three simple types of bridges, a beam bridge, an arch bridge, and a suspension bridge.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-142.jpg?itok=BKsN23oi)
Build A Treetop Walkway
Source Institutions
Build and test a scale model of a rainforest canopy walkway.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-601.png?itok=C13JaWp0)
Above Water: Buoyancy & Displacement
Source Institutions
In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-738.jpg?itok=VmYyAekW)
Salting Out
Source Institutions
In this activity, learners create a mixture of water, alcohol and permanent marker ink, and then add salt to form a colored alcohol layer on top of a colorless water layer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-204.png?itok=9NNghMjT)
Rescue Mission
Source Institutions
In this hands-on activity, learners use the steps of the design process to create a hook to rescue a "space capsule" from the water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-488.png?itok=k4QCd7kw)
Pollution Diffusion
Source Institutions
Learners design their own experiment to investigate how pollution diffuses through ground material.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-239.png?itok=Fd4iSEGB)
Sky Diver
Source Institutions
Students design and build their own parachutes in this hands-on engineering project.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-202.png?itok=LsfnvcVB)
Design a Flavor: Experiment to Make Your Own Ice Cream Flavor!
Source Institutions
In this delicious activity, learners get to make, taste-test and compare their own "brands" of homemade strawberry ice cream.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-677.jpg?itok=-ycXGc7o)
Designing Bandages
Source Institutions
Learners design different shaped bandages for different purposes. First, they draw their designs on paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-302.jpg?itok=3TJrqRrp)
Plastic Milk: You can make plastic from milk
Source Institutions
In this activity (on page 2 of the PDF), learners make a plastic protein polymer from milk. Adding vinegar to milk causes the protein casein to solidify or curdle.