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Showing results 441 to 460 of 676
Let's Go Ice Fishing
Source Institutions
In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-001.png?itok=Z7MAJxl2)
Super Shrinkers
Source Institutions
In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-997.jpg?itok=mmhNEuI1)
Nature Journals
Source Institutions
In this activity, learners construct a home-made journal with simple, everyday materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-385.jpg?itok=Q81yLDIt)
Matter of Degree
Source Institutions
In two separate bags, learners mix water with Epsom salts and detergent.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-633.png?itok=hL-QXTRL)
Bird Feeders
Source Institutions
In this activity, learners build a bird feeder or feeders to attract birds for observation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-010.jpg?itok=KJmbpgmd)
Be A Pasta Food Scientist
Source Institutions
In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-229.jpg?itok=WB-YF6-t)
The Self-Watering Terrarium
Source Institutions
In this biology/ecology activity, learners construct a terrarium out of a tennis ball container. This terrarium is unique because it never has to be watered.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-378.png?itok=ouC62dLu)
Home Water Audit
Source Institutions
This activity offers learners and their families several ways to raise their awareness together about home water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-625.jpg?itok=QKpkhPf3)
Ocean in a Bottle
Source Institutions
In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-347.jpg?itok=iPTMkW8q)
Active Graphs
Source Institutions
In this activity, learners track their movements with jumping and leaping graphs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-302.png?itok=t0WLcOKH)
Arrows
Source Institutions
In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-316.png?itok=qy1SHWoi)
Drops on a Penny
Source Institutions
In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-384.jpg?itok=lW4jLz9Y)
A Penny Saved is a Penny Heard
Source Institutions
In this activity (11th activity on the page), learners use pennies to test their hearing acuity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-284.jpg?itok=qUX19u4Y)
Ready to Observe: Enhance Your Telescope Experience
Source Institutions
This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-284.png?itok=gsgywa4f)
Filtering
Source Institutions
Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-347.jpg?itok=5KNlSGyV)
Seeing in the Dark
Source Institutions
In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-285.jpg?itok=Kc9ad8IT)
Make a Comet Model and Eat It!
Source Institutions
In this activity, learners build models of comets, using edible materials, to learn about comets' structure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-352.jpg?itok=UJI2nI1I)
Shifting Backgrounds, Shifting Images
Source Institutions
In this quick activity/demonstration (5th on the page), learners explore depth perception.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-317.png?itok=vxbWdAE-)
Drinking Straw Pulse Measurer
Source Institutions
In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-385.jpg?itok=DIsas6FD)
Model Eardrum
Source Institutions
In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.