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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.

In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

Learners shred used paper, add water, and blend it into pulp. They then strain and roll the pulp out to make new paper.

Visitors test solutions of water, sugar, salt, and hydrochloric acid and the solids salt and sugar. They clip leads from the hand generator to wires immersed in each substance.

In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

In this physics activity, learners build their own rockets out of film canisters and construction paper.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

This is an activity (on page 2 of the PDF under Bone Regrowth Activity) about the two main components of bone - collagen and minerals (like calcium) - and how they each contribute to its flexibility a

In this activity, learners explore how packaging engineers develop customized shipping and packaging containers to meet the needs of many different industries.

In this archaeology activity, learners consider ways in which excavating an underwater site is different from excavating a terrestrial site.

In this math lesson, learners compare products to determine the best product.

In this math lesson, learners participate in several activities where they apply measurement skills.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this activity, learners are introduced to challenges of maintaining temperatures while living in space.