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In this activity, learners estimate risks associated with different events and compare their estimates to the real possibilities.

In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

In this activity, learners pretend that they are orcas and search for their "pods" using Morse code.

In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue.

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

In this health and genetics activity, learners determine whether tasting the bitter compound PTC (phenylthiocarbamide) influences which vegetables a person likes.

In this activity, learners will perform various investigations to understand the vestibular-ocular reflex and learn about the importance of visual cues in maintaining balance.

In this activity, learners use their senses to collect information about a fruit and record their findings in a Science Journal.

In this activity, learners set up an experiment to investigate the effects of hot air on the path of a laser beam.

In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.

In this activity, learners investigate procedural memory.

From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

In this activity, learners investigate how geometry plays a role in perspective.

In this activity (on page 2 of the PDF under GPS: Light and Color Activity), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk.

In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

In this activity, learners practice drawing 3D structures in two dimensions. Learners draw cube stacks from five different points of view.