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Building Houses: Build a Cardboard Tube House
Source Institutions
Build a house you can fit inside, using cardboard tubes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-751.jpg?itok=CIuktqCO)
Ancient Sun Observations
Source Institutions
In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-349.png?itok=7krA5cTj)
Turbidity
Source Institutions
This is an activity about turbidity, or the amount of sediment suspended in water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-595.jpg?itok=ONEvS35d)
Observing Cells
Source Institutions
In this playful activity, learners explore the structure of the cell—the basic unit of every living organism—by creating a model of cell structures using soap bubbles, and by examining a slice of onio
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-516.jpg?itok=ZONU1k8p)
Exploring Ultraviolet (UV) light from the Sun
Source Institutions
In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-822.jpg?itok=ULC6_1e1)
Do Sweat It!
Source Institutions
In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-009.png?itok=cvrtDMJ4)
Stained Glass Glue
Source Institutions
In this activity on page 6 of the PDF, learners use glue instead of glass to create artwork that can be hung in a window.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-747.jpg?itok=MW0NoaVf)
Exploring Earth: Paper Mountains
Source Institutions
In this activity, learners explore in what ways the shape of the land and the pull of gravity influence how water moves over Earth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-363.gif?itok=tIMg4D2F)
Hoopster: An Airplane Made from Paper Hoops
Source Institutions
This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-021.png?itok=SIrEi3be)
Iodine Investigators!
Source Institutions
In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-753.jpg?itok=bn9de7f4)
Big Sun, Small Moon
Source Institutions
Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-960.jpg?itok=2tePvIOj)
Build a Bridge
Source Institutions
In this activity, learners use design thinking to design and build their own bridge out of household materials including adhesives and/or connectors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-058.jpg?itok=HW2st6_3)
Water Cycle in a Bag
Source Institutions
In this activity, learners create a biosphere in a baggie.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-974.jpg?itok=fabJIthq)
Squeezing Pictures Into Codes
Source Institutions
In this activity, learners will explore how computers represent pictures using pixels.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-784.jpg?itok=DVha_VvG)
Window Under Water
Source Institutions
Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-716.gif?itok=nwcrO8UV)
Hand Battery
Source Institutions
In this activity about chemistry and electricity, learners form a battery by placing their hands onto plates of different metals.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-505.jpg?itok=yn9kXuwy)
Exploring Tools: Mitten Challenge
Source Institutions
In this activity, learners build a LEGO® structure while wearing mittens. This activity shows learners how difficult it is to build small things when your tools are too big.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-702.jpg?itok=rOcfJwnz)
Torsion Drum
Source Institutions
In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-511.jpg?itok=uB2EKNjs)
Exploring Fabrication: Gummy Capsules
Source Institutions
In this activity, learners make self-assembled polymer spheres.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-064.gif?itok=qPHrfHoa)
Seeing Is Believing
Source Institutions
This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'