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In this activity (page 1 of the PDF under SciGirls Activity: Bogs), learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.

Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

Water treatment on a large scale enables the supply of clean drinking water to communities.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

In this ecology activity (page 8 of the PDF), learners explore how to filter contaminated water using a variety of materials.

Learners gain an intuitive knowledge of the physical aspects of watersheds by creating their own watershed models.

In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting.

In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.