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Cleaning with Dirt
Source Institutions
Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-029.jpg?itok=HiLWj0co)
The Carbon Cycle and its Role in Climate Change: Activity 1
Source Institutions
In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.
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How Greenhouse Gases Absorb Heat
Source Institutions
Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-830.png?itok=jqd0vYid)
Great Steamboat Race
Source Institutions
In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-831.png?itok=U8jdIO4O)
Cool It
Source Institutions
In this outdoor activity/game, learners use thermometers to simulate how lizards survive in habitats with extreme temperatures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-311.jpg?itok=wm4MCnTf)
Off Base
Source Institutions
In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-312.png?itok=NTdYbG5m)
Wintergreen
Source Institutions
In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-538.png?itok=562LXQBh)
Dinosaur Bone Experiments
Source Institutions
This activity features two connected hands-on activities about dinosaur bones.