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In this activity, young learners (2 years and up) explore tree structure and biology. Tree products are explored by painitng with fruit.

In this activity, learners build a bird feeder or feeders to attract birds for observation.

Learners follow a three-step process to start their own rock collection.

In this activity, learners collect worms and then observe how they move.

This is an activity where learners will discover what types and how many insects live in their own backyard.

In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

In this activity, learners use Styrofoam to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.

In this activity, learners compare plant and animal life in different habitats including a sidewalk crack and lawn. Learners sort human-made materials and natural materials found in each habitat.

In this biology/ecology activity, learners construct a terrarium out of a tennis ball container. This terrarium is unique because it never has to be watered.

In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer.

In this activity, learners build an instrument for catching and observing flies. Learners act as entomologists, attract flies into a jar using a slice of apple, and then observe the flies' behavior.

Learners construct a bird feeder from re-used materials. After hanging their feeder, they keep a journal about what birds visit the feeder.

In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.

In this activity, young learners will make their own flower seed nursery in an egg carton.

In this activity, learners observe fly behavior and then build a flytrap.

In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

This activity (on page 2 of the PDF under SciGirls Activity: Forecasting) is a full inquiry investigation into meteorology and forecasting.

In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials.

In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.