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In this activity, learners build one or more edible coral polyps and place them together to form a colony.

In this activity, learners sort different natural phenomena into categories (they occur on Earth, on the Moon, or on both), and then model how energy moves during a quake using spring toys.

In this activity, learners create volcanoes like those they have examined on Earth and Mars through images taken by spacecraft.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

In this activity, learners explore dinosaur fossils by making an edible treat. First, learners read "Dinosaur Bones" by Aliki to examine how fossils are formed.

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.