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In this math activity, learners trace their hands and estimate the number of beans that can fit into their hand tracings. Then, learners glue the beans to the tracing to test out their estimations.

$1 - $5 per student Ages 4 - 8 5 to 10 minutes
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In this activity, learners examine raindrop bottles (prepared ahead of time) to observe in slow motion the behavior of falling droplets and explore concepts such as drag and terminal velocity.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density.

$5 - $10 per group Ages 8 - 18 10 to 30 minutes
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Get all wrapped up in a lesson about skin!

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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This is an activity that models the operation of a seismograph, a tool used to measure the size of earthquakes.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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In this activity, learners use a straight line to learn about circles. Learners measure and record the diameter and circumference of different sized cylindrical objects on a chart.

$1 - $5 per group Ages 11 - 18 30 to 45 minutes
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In this "Sid the Science Kid" activity, learners use their bodies to measure a room. Instead of inches or feet, how many kids does it take to measure the length of a room?

free Ages 4 - 6 10 to 30 minutes
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In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

1 cent - $1 per group Ages 4 - 18 1 to 2 hours
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In this activity, learners explore the chemical reaction between water and effervescent antacid tablets. This hands-on activity models how a material can act differently when it's nanometer-sized.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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Albert Einstein proved that space bends around anything that has mass. This activity uses Jell-O's ability to bend around objects as a model for space bending around planets and stars.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners discover the importance of maps and scale as they work together to create a map of the classroom.

free Ages 11 - 18 45 to 60 minutes
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This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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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.

$1 - $5 per student Ages 4 - adult 5 to 10 minutes
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In this artistic activity, learners blow up a smaller picture into a larger one, by using a grid.

1 cent - $1 per group Ages 6 - 11 30 to 45 minutes
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Learners observe a model of a cell and its chromosomal DNA made from a plastic egg and dental floss. Use this model to illustrate how much DNA is held in one cell.

1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners complete a series of drawing activities to explore scale and powers of 10. Learners first trace each other on 1-meter-square pieces of paper.

1 cent - $1 per student Ages 14 - 18 30 to 45 minutes
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In this activity, learners investigate the formation of craters. Learners will examine how the size, angle and speed of a meteorite's impact affects the properties of craters.

$1 - $5 per student Ages 6 - 14 45 to 60 minutes
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Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood.

$10 - $20 per group Ages 14 - 18 30 to 45 minutes
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In this graphing exercise (page 2 of the pdf), learners compare their own height to the length of various sharks.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes