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In this nighttime, outdoor activity, learners keep a record of what they see in the sky by drawing constellations, the Moon, and making note of the weather and conditions each day.

In this outdoor activity, learners play a game of Tag to discover how neurons attach themselves to each other to form a chain.

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

In this outdoor mapping activity, learners explore where plants grow and map plant-distribution patterns.

In this activity (located at the bottom of the page), learners investigate soil and explore the creatures that live in it.

In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.

In this activity, learners help create and then navigate an outdoor course of the traditional "planets" (including dwarf planet Pluto), which are represented by small common objects.

In this outdoor game, learners play the roles of gray or red squirrels gathering and storing a supply of food in "fall" and recovering enough of them to survive the "winter." Learners carry bags repre

This activity uses a special paper that can create images with exposure to the Sun. Collect objects of different shapes and sizes and use them to make interesting patterns on your sun print.

In this outdoor activity/field trip, learners explore the concept of population density.

In this outdoor activity, learners find out the color of food that jays prefer and then try to change the birds' preference by altering the taste of the food with salt.

In this outdoor activity, learners explore how a surprising number of animals use human-made litter, such as cans and crumpled paper, to find food and shelter in their environment.

In this outdoor game, learners role play predator and prey to explore the importance of keen hearing and silent stalking skills in the animal world.

In this outdoor activity and game, learners collect and sort leaf samples to determine how many types of plants grow in the activity site.

In this outdoor, windy day activity, learners "fly" and race leaves along a line to discover which types of leaves catch the most wind. Which leaves are the best fliers? Why?

In this outdoor activity and bingo-like game, learners explore why and how seeds spread far from the plants that produce them.

In this outdoor activity, learners search for lichen, a combination of a fungus and an alga living together. Lichen grow where most other plants cannot, on rocks, the trunks of trees, logs and sand.

In this environmental science activity about biodiversity, learners play a game to discover the effects of non-native species on an ecosystem.

This is a classic exercise for visualizing the scale of the Solar System.