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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

In this creativity-based activity, learners imagine what the Earth will look like in the near and distant future, then design their own future habitat and creatures that may live there.

This activity has three story puzzles learners can solve to learn about life in the Arctic.

This activity introduces learners to Native Americans as people who depended upon nature in the past and continue to emphasize the importance of nature in the present.

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

This activity is intended to familiarize learners with native Houston birds, introduce learners to tools biologists use in the field, and to enhance their observation skills.

In this activity, learners construct possible food webs for six different ecosystems as they learn about the roles of different kinds of living organisms.

In this activity, learners identify the reproductive parts of plants and the animal (bee) structures involved in pollination.

In this activity, learners investigate how wolves communicate with each other through different body postures.

In this activity, learners explore the web of connections among living and non-living things.

In this food science activity, learners observe different plant-originated foods.

In this activity (on page 2 of PDF under GPS: Sea Turtles Activity), learners will model how a sea turtle population changes over time, from eggs to adults, using puffed rice.

In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.