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On Target
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In this design challenge activity, learners modify a cup so it can carry a marble down a zip line and also drop it onto a target.

Getting Your Bearings
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In this activity, learners explore the concept of friction and how ball bearings reduce friction.

Macro-Microarray
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In this activity, learners explore the "nuts and bolts" of gene chips.

How Much is a Name Worth?
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In this math lesson, learners use simple addition facts to compute values (in dollars and cents) for their names.

Harmless Holder
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Have you noticed the plastic rings that are used to hold six-packs of soda? Those rings are great for carrying cans, but they're real trouble when they become trash that animals can get tangled in.

The Carbon Cycle and its Role in Climate Change: Activity 1
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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

Passion for Pixels
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In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

Memory Match
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In this classic memory game (on pages 37-45 of PDF), learners turn over tiles to reveal images on the back.

Dance Pad Mania
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Make your own "Dance Dance Revolution" dance pad! In this design challenge activity, learners work in teams to build a dance pad that lets you use your feet to sound a buzzer or flash a light.

For Your Eyes Only
Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

Clay Beams and Columns
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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

Cool It!
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Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

Getting There!: Navigation and Trajectory
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In this two-part activity, learners map a navigation plan to get from Earth to Mars and back. In activity one, learners represent the orbital paths of Earth through dance and dramatic movement.

Vestibular-Ocular Reflex
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In this activity, learners will perform various investigations to understand the vestibular-ocular reflex and learn about the importance of visual cues in maintaining balance.

History of Electricity
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This is a series of demonstrations about different electrical and magnetic phenomena.

The Parachuting Egg
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In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.

Sky Diver
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Students design and build their own parachutes in this hands-on engineering project.

Give Me a Brake
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In this activity, learners explore the concept of how brakes can stop or slow mechanical motion.

Tricky Tangrams
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In this activity (on pages 49-54 of PDF), learners play with tangrams, a set of triangles, squares and a parallelogram that can combine into a larger square as well as all sorts of other shapes.

Coral Snapshots: Biodiversity in Marine Protected Areas
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In this data activity, learners analyze data from coral reef snapshots taken by scientists at the Virginia Institute of Marine Science.