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In this matchmaking activity (on page 2 of the PDF under GPS: Animal Scent Activity), learners will each have a scented cotton ball taped to their shoulder. The scent (e.g.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this outdoor activity, learners saw sections from fallen trees, then count tree rings and look closely at patterns of tree growth.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.

Over $20 per group Ages 8 - adult 45 to 60 minutes
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Learners will determine their respiratory rate and explore the factors that affect breathing rate by filling out and using the Respiratory Chart provided in the lesson.

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners survey living organisms near where they live or go to school, and create a local field guide.

$1 - $5 per group Ages 6 - adult 30 to 45 minutes
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In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this outdoor activity, learners turn the fun of feeding wild birds into an investigation of bird behavior.

Over $20 per group Ages 6 - 14 45 to 60 minutes
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This outdoor activity (on page 2 of the PDF under SciGirls Activity: Sand Dunes) is a full inquiry investigation into how the amount of moisture in a sand dune relates to the number of plants growing

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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In this geometry activity, learners explore networks painted on playgrounds, such as a four square court, and draw their own.

1 cent - $1 per group Ages 8 - 11 10 to 30 minutes
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In this activity about heart health (on page 27 of the PDF), learners measure their heart rates after a variety of physical activities and compare the results with their resting heart rates, and with

free Ages 8 - 14 1 to 2 hours
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In this activity, learners work in teams to build and test paper airplanes. Learners try to fly their airplanes directly on the runway and earn points for accuracy.

$1 - $5 per group Ages 6 - 11 10 to 30 minutes
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In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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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.

$5 - $10 per group Ages 6 - 14 45 to 60 minutes
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In this health and fitness activity, learners focus on the importance of daily physical activity, specifically walking.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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Learners combine counting, multiples, and number patterns with jumping up and down. To start, pick a counting number.

free Ages 4 - 14 5 to 10 minutes
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In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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In this hands-on nature activity, learners observe the emergence of leaves and flowers. Branches from trees and bushes are collected in the early spring, brought indoors, and placed in water.

$1 - $5 per group Ages 8 - 14 1 to 12 months
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In this outdoor activity, learners first explore lizard feeding behavior by creating a "lizard rig" to dangle different objects in front of live lizards and see which objects the lizards try to bite.

$5 - $10 per group Ages 11 - 18 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Soccer Ball Kick) is a full inquiry investigation into transfer of motion.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes