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Hot Equator, Cold Poles
Source Institutions
In this activity, learners use multiple thermometers, placed at different angles, and a lamp to investigate why some places on Earth's surface are much hotter than others.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-774.jpg?itok=FTR0MS3p)
Counting With Quadrants
Source Institutions
Millions of organisms can live in and around a body of water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-293.png?itok=4GDDC7AY)
Rock Pioneers
Source Institutions
In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-754.jpg?itok=D_babDUn)
Model the Sun and Earth
Source Institutions
In this activity, learners make scale models of the Sun and Earth out of paper mache.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-361.png?itok=pOz6B9yk)
Moon and Stars
Source Institutions
In this craft activity, learners create a string of cut-out moons and stars.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-628.png?itok=DYrrPKsh)
Clam Hooping
Source Institutions
In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-288.png?itok=zeWJSTQH)
Seas in Motion
Source Institutions
In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-762.jpg?itok=eLZgroBz)
Detect Solar Storms
Source Institutions
In this activity, learners build their own magnetometer using an empty soda bottle, magnets, laser pointer, and household objects.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-752.jpg?itok=ZY7E7FZM)
Measure the Sun's Size
Source Institutions
In this activity, learners make their own pinhole viewer in order to measure the size of the sun.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-787.jpg?itok=Yo3XI56d)
Clear Water, Murky Water
Source Institutions
How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?