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Effects of Solar Radiation on Land and Sea
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In this activity, learners explore the different heating properties of soil and water.

Mass of the Earth
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In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.

The Ability of Permeability
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In this activity (page 11 of the PDF), learners investigate how quickly water moves through various materials. They measure and compare the permeability of gravel, sand, and soil.

Meteoroids and the Craters They Make
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In this activity, learners investigate the formation of craters. Learners will examine how the size, angle and speed of a meteorite's impact affects the properties of craters.

Jiggly Jupiter
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In this activity, learners build edible models of Jupiter and Earth to compare their sizes and illustrate the planets' internal layers.
Crater Maker
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.

Sand Castle Saturation
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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

Water Walk
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Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.

Bury Me Not!
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This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition.

Cleaning with Dirt
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Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

Kid Moon: Splat!
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In this activity, learners model ancient lunar impacts using water balloons.

Trail Impact Study
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In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.