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In this activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.

In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.

In this activity on page 6 of the PDF, learners use glue instead of glass to create artwork that can be hung in a window.

This activity (on page 2 of the PDF SciGirls Activity: Milk Carton Boat) is a full inquiry investigation into boat hull design.

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

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