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How Many In a Minute
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In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.

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

CD Greenhouse
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In this activity, learners plant seeds and watch them sprout and grow inside a CD case.

Piles of Paper: Estimate Paper Use
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In this activity, learners keep track of how much paper the group uses in a week. Build awareness of paper waste, while strengthening measurement and estimation skills.

Exploring Tools: Mitten Challenge
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In this activity, learners build a LEGO® structure while wearing mittens. This activity shows learners how difficult it is to build small things when your tools are too big.

Torsion Drum
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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

Seeing Is Believing
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

Hydraulic Car
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In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car.

Número misterioso
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Combine la lógica y los números en este juego para todas las edades.

Planetary Rescue Squad
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This is an online Flash game where learners can experiment with ballistics and how to compensate for the varying levels of gravity found on the planets of our Solar System.
Create a Mangrove Tree
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In this group activity, learners will explore the characteristics, functions and uniqueness of the mangrove tree.

CANdemonium: Make a Drum Out of Recycled Cans
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With three cans and some tape, make a drum that you bonk down on any surface to produce a variety of sounds. This activity also teaches you about pitch, vibration, and frequency.

Fantastic Plastic
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In this activity, learners investigate the properties of plastic bags. Learners find out what happens when they slowly push a pencil through a plastic bag filled with water.
Take Ten: Cleaning Up is Fun
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In this activity, learners will make cleaning up more fun with predictions and counting. Estimate how many things are on the floor (or table), then count as they are picked up.

Tune Booster
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In this activity, learners build unique sound enhancing inventions with items from around the house to amplify sound from their smart phone's speakers.

A Crayon Rock Cycle- Sedimentary
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This is part 1 of the three-part "Crayon Rock Cycle" activity. In this activity, learners explore how sedimentary rocks form.

Frog Eggs
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In this activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.

Audio Memory
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In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

Curve Control
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In this online game, learners must keep their snowboarding racer in the middle of the course without veering off track or hitting obstacles.
Mix & Match Estimation
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In this activity, learners use their estimation skills to match the unmarked containers to their amounts.