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Our Chemical Senses: Olfaction
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In this activity, learners investigate the olfactory system by conducting several experiments.

Are you a Square or a Rectangle?
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In this activity, learners investigate whether more people are squares or rectangles. People with similarly sized heights and arm spans are classified as squares.

Design and Build a Barometer
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In this activity, learners make a barometer, an instrument to measure change in air pressure.

Percentage of Oxygen in the Air
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In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

Measure the Pressure: The "Wet" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.

Colors, Colors?
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In this activity related to the famous "Stroop Effect," learners explore how words influence what we see and how the brain handles "mixed messages." Learners read colored words and are asked to say th

Our Sense of Hearing
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In this activity, learners investigate the sense of hearing and plan and conduct their own experiments.

Poking Around: Having Students Experience the Real Process of Science
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Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood.

Geometry and Algebra: The Future Flight Equation
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In this activity, learners discover how NASA engineers develop experimental aircraft.

What Trickles Down?
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Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.

Design a Lunar Rover!
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In this team design challenge (page 2-10 of PDF), learners design and build a model of a Lunar Transport Rover that will carry equipment and people on the surface of the Moon.

Ripening of Fruits and Vegetables
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In this activity, learners test the rate of ripening fruit and vegetables and use a chemical to inhibit the ripening process.

Wrap It Up!
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In this Energy and Environment activity (page 9 of the PDF), learners calculate the mass of a piece of gum, compare it to the mass of the gum's packaging, and then create a bar graph of the results.

Recycle Your Own Paper!
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In this activity (page 2 of PDF under GPS: Garbology Activity), learners will prepare sheets of homemade recycled paper from several different source pulps.

Get a Leg Up
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In this activity, learners experiment and collect data during a simulation of the fluid shifts experienced by astronauts' bodies in microgravity.

Reusable Rockets
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This activity (located on page 3 of the PDF under GPS: Garbology Activity) is a full inquiry investigation into design optimization using recycled materials.

Having a Gas with Cola
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In this activity, learners measure the amount of carbon dioxide in a carbonated drink.

Pedal Power
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In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.

Glow Fast, Glow Slow: Alter the Rate of a Reaction!
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Learners investigate one factor affecting reaction rates: temperature. In a darkened room, two identical lightsticks are placed in water -- one in hot water and one in cold water.

Heavy Lifting
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In this activity, learners work in NASA teams to build balloon-powered rockets using identical parts and compete to launch the greatest number of paper clips to "space" (the ceiling).