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In this activity about backyard habitats learners create a safe and toad-friendly environment near their own home.

In this experiment with planaria (a type of flatworm), learners will investigate the capability of different body sections to regenerate.

In this activity, learners discover how bats use echolocation to get information about objects in their environment. During the activity, one learner whispers into a tube.

In this arts and crafts activity about animals and animal characteristics, learners will design animal hats and role-play as animals.

This marine biology activity (on pages 11-17) introduces learners to kelp (seaweed) forests that grow in the ocean and are home to many species of sea animals.

In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

In this activity (on pages 24-34), learners explore the four-part stomach of cows (and other grazing animals called ruminants), and compare it to the human one-part stomach and its digestive process.

In this activity, learners use their imaginations and experiment with different materials to create bug hats.

In this detailed activity (on pages 9-18), learners investigate the body parts of a parasitic ascaris worm by making and dissecting clay models.

In this family or group inquiry activity, learners use their senses to explore a local forest or woodland.

In this outdoor beach activity, learners use a variety of "beaks" (such as trowels, spoons or sticks) to hunt for organisms that shore birds might eat.

This is an activity which will allow learners to gain an understanding of lemur behavior through observation and role play.

In this activity, learners listen to a story and tell a story of their own as they learn about the importance of elders in Native American cultures.

In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV).

In this activity, learners will explore reptile biology by taking temperature readings in various places and comparing them.

In this activity, multiple learners will use a game with ballloons to learn about coqui frog behavior.

In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

In this activity, learners perform an experiment that replicates the dilemma faced by birds in acquiring food from a confined area.

This resource contains ideas and brief instructions on how to build animals out of construction paper and other simple materials.

In this activity, learners explore how nanosized structures can create brilliant color.