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Sniffing for a Billionth
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This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

Creating Craters
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In this activity, learners will investigate how craters are made and the different factors that contribute to size left from the impact.

Hanging Around
Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

What Counts in Bounce
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In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce.

Playtime Paint
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In this activity on page 9 of the PDF, learners make their own paint using chalk as a pigment and glue and water as binders. This activity introduces learners to special mixtures called suspensions.

Crystal Gardens
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In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

Short Circuit
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In this activity about electricity, learners explore what happens when you blow a fuse.

Change in Temperature: Endothermic Reaction
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Learners investigate signs of a chemical reaction when they mix vinegar and baking soda. In addition to a gas being produced, learners also notice the temperature decreases.

Wash Away Germs
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Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

Exploring the Solar System: Asteroid Mining
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In this activity, learners will imagine the challenges and opportunities of asteroid mining.

Resource Hunt
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In this activity, learners explore nonrenewable resources and learn why these resources are finite.

Achieving Orbit
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In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a sat

Upside-Down Town
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In this activity, learners explore ray optics. Learners discover that they can use a magnifying glass to create an upside-down image.

Up Periscope!
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This activity provides instructions for building a mirrored tube--a smaller and simpler version of a submarine's periscope--that lets you see around corners and over walls.

Getting Windy
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In this activity, learners create and understand surface currents. Learners create example surface currents and discover how landmasses affect the current.

Motor Effect
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In this activity about electricity and magnetism, learners examine what happens when a magnet exerts a force on a current-carrying wire.

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.

Cell Division
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This activity was designed for blind learners, but all types of learners can use it to investigate how, in a one-celled organism such as a bacterium, the division of cells increases the number of cell

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.