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Learners follow a three-step process to start their own rock collection.

In this activity, learners participate in a scavenger hunt, searching for and recognizing minerals and products that contain minerals.

Learners will compare the growth rate and appearance of crystals forming on small rocks to those growing on miscellaneous objects. Learners will also investigate how temperature (warm vs.

In this activity, learners create channel features with flowing water, comparing their observations to real images of Mars and Earth taken by satellites/orbiters.

In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

In this activity, learners drop impactors onto layers of graham crackers!

In this activity, learners model erosion using a clear shoebox and sand or soil.

In this activity, learners review and discuss weathering, erosion and mass wasting, to gain a stronger understanding of how Hickory Run’s Boulder Field was formed after the Laurentide Continental Glac

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

In this activity, learners model how the Moon's volcanic period reshaped its earlier features.

In this activity (on pages 6-11), learners work as a team to investigate how impact craters on Earth, the Moon or other planets take shape and what patterns they make.

In this activity (page 13 of the PDF), learners discover how weathering and erosion change the Earth’s surface.

Based on color photographic images, learners compare geological features on Earth and Mars to understand similarities and differences between the two planets, and consider the forces that created land

In this activity, learners examine photo images of Earth taken from space, and attempt to identify and explain some of our planet's geological features.

In this 6-7 day investigation, learners begin with an introduction to seamounts that are present in the Gulf of Alaska.

Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

In this activity (page 1 of the PDF under SciGirls Activity: Dinosaurs), learners will model how paleontologists estimate the age of fossil discoveries by extracting “fossil” playing cards from newspa

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

In this activity, learners will model the mechanical weathering and erosion of rocks in a stream or river.

In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).