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

In this outdoor fall activity, learners find out what living in or under a layer of leaves is like.

In this activity (page 10 of PDF), learners approximate the area of the uppermost cross section of an impact crater using a variety of square grids.

Using simple materials, learners will construct the end effector (grasping device) of a robotic arm and use the device to capture and pick up an object.

In this activity, learners take on the role of various parts of the cell in order to model the process of protein synthesis.

Learners explore the variables that affect the properties of ice and the places where different types of ice are found.

In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure.

This activity (on page 2 of the PDF under SciGirls Activity: Earthquakes) is a full inquiry investigation into aerial imagery.

In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.

In this activity, learners investigate the food, water, and space needs of common livestock animals.

In this activity, learners construct a coastal landmass from sand and add features such as tidal creeks and barrier islands.

A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.

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