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DNA Nanotechnology
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Washing Air
Learners observe and discuss a simple model of a wet scrubber, a device for cleaning industrial air pollution.

Colored Shadows Investigation
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This activity (located on page 3 of the PDF under GPS: Light and Color Activity) is a full inquiry investigation into mixing colors with light.

Invisible Sunblock
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.

Altered Reality
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

Biodiversity of Feet
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This activity (on page 3 of the PDF under GPS: Biodiversity Activity) is a full inquiry investigation into biodiversity.

Single-Cell Life
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In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

The Pulse is Right
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In this online activity, learners measure their pulse rates and investigate how their pulses change when they engage in different activities.

Easy PEAsy Seed Germination
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In this activity, learners determine the necessary conditions for pea seed germination.

Gravestone Weathering
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In this activity (located on pages 9-14 of PDF), learners visit a cemetery to examine the distinguishing characteristics of rock weathering.

Wash Away Germs
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Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

Mirror Reversal
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Challenge popular misconceptions, learners explore how a mirror actually reflects an image in this activity.

Animals in a Grassland
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In this outdoor, warm weather activity, learners use sweepnets to search a grassy area such as a large lawn or field, collecting small animals to find as many different kinds of animals as possible.
What Molecules Make the Holes in Bread?
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In this activity, learners will discover why there are holes in bread.

Forensic Science: Hair Sample Investigation
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This activity (on page 2 of the PDF under SciGirls Activity: Forensics) is a full inquiry investigation into how hairs from a crime scene are matched to suspects.

Animal Ears
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This activity (page 2 of the PDF under SciGirls Activity: Horse Ears) is a full inquiry investigation into animal behavior and communication.

Feed the Birds
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Learners construct a bird feeder from re-used materials. After hanging their feeder, they keep a journal about what birds visit the feeder.

Cell Division
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This activity was designed for blind learners, but all types of learners can use it to investigate how, in a one-celled organism such as a bacterium, the division of cells increases the number of cell

CD Greenhouse
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In this activity, learners plant seeds and watch them sprout and grow inside a CD case.

Piles of Paper: Estimate Paper Use
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In this activity, learners keep track of how much paper the group uses in a week. Build awareness of paper waste, while strengthening measurement and estimation skills.