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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.

In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

In this two-part activity, learners map a navigation plan to get from Earth to Mars and back. In activity one, learners represent the orbital paths of Earth through dance and dramatic movement.

This is a series of demonstrations about different electrical and magnetic phenomena.

In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

In this activity, learners examine antibodies and antibody recognition using a model.

In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.

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

In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to another

In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.

This activity (on pages 38-43) has learners simulate the way scientists track and map the movement of otters in the wild using radio trackers.

In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.

In this lesson, learners will understand the concepts behind endangered and extinct animals and develop their own conservation plan to save three endangered species.

In this lesson, learners will practice graphing and statistically analyzing data.

Learners participate in a variety of activities modeling different disabilities.

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

In this activity, learners investigate the history and development of agricultural biotechnology.

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

In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.