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The Ups and Downs of Body Temperature
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In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.

Mystery Box: Making Observations and Collecting Data
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This activity was designed for blind learners, but all types of learners can use it to learn to differentiate between qualitative and quantitative observations and to practice data collection.

Our Solar System to Scale
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In this activity, learners plan and create a 24-foot long, two-dimensional model of our solar system, and compare and contrast the differences between planets and the sun.

Test the Finger Wrinkle Hypothesis
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Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

Pocket Solar System: Make a Scale Model
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This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.
Math and Creativity Posters
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These math posters have questions written on them, such as: How many colors can you name in a minute? or How many seconds can you balance on one foot?

Special Effects: Titanic and Beyond
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In this activity, learners investigate how geometry plays a role in perspective.

Raceways
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In this activity, learners build a model roller coaster to help the Mummy entertain the Atom's Family monsters. Learners assemble the roller coaster between two chairs using vinyl ceiling molding.

Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

Static Friction Prediction
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In this activity (page 2 of PDF under GPS: Kinetic Sculpture Challenge Activity), learners will predict which objects have to overcome the most static friction to slide down a ramp.

Where Was That?
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In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.

Twirling in the Breeze
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In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.

Cardiac Hill
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In this outdoor activity linking human health to the environment, learners use their pulse rates as a measure of the effort expended in walking on different slopes.

Atmosphere Composition Model
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In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

Extreme Sounds
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This activity (on page 2 of the PDF under SciGirls Activity: Extreme Sounds) is a full inquiry investigation into sound.

The Pull of the Planets
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In this activity, learners model the gravitational fields of planets on a flexible surface.
Soaring Towers: Building with Recycled Materials
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In this activity, learners will build the highest tower they can out of recycled materials.

Greeting Card Boxes
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In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.

Push It Out
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In this physics related activity which requires adult supervision, learners make their own powerful water rocket and, with it, explore Newton's Third Law of Motion.