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Don't Throw it in the Garbage
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In this activity, learners discover why only some types of plastic can be recycled.
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Sugar/Salt Crystals
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In this chemistry activity (page 1 of the PDF), learners will observe a physical change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-911.gif?itok=AK2t3Qk_)
Headphone Helper
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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
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Repulsive Grape: Diamagnetism
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Do grapes, yes the grapes from the grocery store, move in the presence of a very strong magnet?
Harmful Algal Blooms: In Full Bloom
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In this activity, learners will investigate the impacts of harmful phytoplankton using NOAA's Coastal Services Center Harmful Algal Bloom Forecasting (HABF) Project data.
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Crushing Test
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In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult.
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Paper Tape Motion Timer
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In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.).
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Catch the Wind
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In this weather activity (page 1 of the PDF), learners will construct their very own anemometer to measure wind speed.
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Cookie Surface Area
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This is an activity (on page 2 of the PDF under Surface Area Activity) about surface area to volume ratio.
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Safer with Science-Masks
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Why should we wear masks? Do masks work? Do some masks work better than others? Learners find out in this activity.
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Breaking Beams
Learners investigate stress and strain by designing, building, and testing beams made from polymer clay.
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Protect That BRAIN!: Mr. Egghead
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This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.
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Oil Spill Cleanup
This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.
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Exploring Bouncing Balls
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Learners explore the physical properties of a variety of balls and how they bounce.
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Pulleys
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In this physics activity, learners experiment with pulleys and find that they can decrease the effort needed when using a pulley to lift or move different loads.
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Beachcombing
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In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.
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As the Rotor Turns: Wind Power and You
Source Institutions
In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed from
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Mars from Above: Viewing Volcanoes
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In this activity, learners create volcanoes like those they have examined on Earth and Mars through images taken by spacecraft.
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Average Names
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In this activity, learners compare the number of letters in the names of the people in their families or group of friends.
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M&M's in Different Sugar Solutions
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In this activity, learners investigate whether having sugar already dissolved in water affects the speed of dissolving and the movement of sugar and color through the water.