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In this activity, learners explore nonrenewable resources and learn why these resources are finite.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.

In this activity, learners use a toaster to generate wind and compare the appliance's heat source to Jupiter's own hot interior. Learners discover that convection drives wind on Jupiter and on Earth.

In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases.

In this activity, learners will observe and record living things with in outlined outside space.

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

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

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.

In this multi-step experiment (page 4 of pdf), learners study tide pools, and then drop a "wave" (a 4-pound bag of beans or birdseed) on a shell to mimic the force of crashing surf on tide pool animal

This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.

Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

In this activity (page 4 of the pdf), learners build a model of a tide pool, using chicken wire, paper mache, and other craft materials.

Learners discover that their breath contains carbon dioxide, one of the pollutants found in car exhaust.

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

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

This is an activity about turbidity, or the amount of sediment suspended in water.

In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

Learners develop an understanding of air pressure in two different activities.

In this activity, learners will experiment to find how long it takes to compost paper. They will create their own compost container and test different variables.