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Learners test two jars containing hot water, one covered with plastic and one open, for changes in temperature.

In this activity (page 1 of the PDF under SciGirls Activity: Rabbits), learners will visit a zoo, aquarium, or pet store to view a variety of fish.

In this classic activity, learners investigate natural selection by becoming birds foraging for food on an island.

In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

This activity (on page 3 of the PDF under GPS: Biodiversity Activity) is a full inquiry investigation into biodiversity.

In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).

In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

In this group activity, learners consider environmental conditions—temperature, presence of water, atmosphere, sunlight, and chemical composition—on planets and moons in our solar system to determine

Learners test two jars of ice water, one covered and one open, for changes in temperature. After placing the jars in the sun, learners discover that the covered jar cools down more slowly.

Learners build devices from rubber bands to test for invisible air pollutants.

In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.

Learners tour their school or home looking for sources of indoor air pollutants (IAPs).

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

In this activity (on page 2 of the PDF), learners explore surface tension by adding pennies to cups which are "full" of plain water or soapy water.

In this activity, learners take an indoor nature walk and discover various objects that have been brought in from the outdoor environment.