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In this activity, learners use their sense of smell to explore the world on the nanoscale.

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

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

In this activity, learners will build the highest tower they can out of recycled materials.

Historically, sea floor mapping (bathymetry) was done by soundings.

This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).

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

In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.