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In this activity, learners explore how their sense of smell affects their taste buds. Learners taste different flavored jelly beans while holding their nose.

In this activity, learners investigate circulation and measure their own your heartbeat. A heart rate, or pulse, is the number of times the heart beats per minute.

In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

How quick are your reflexes? In this online game, you are a hockey goalie defending quick slap shots. Learn about reaction time, muscle memory, and reflexes.

In this activity, learners conduct a simple test to find their blind spot.

In this activity, learners make some music by constructing a kazoo out of a simple plastic drinking straw. Use this activity to explore sound, vibrations, and music.

Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image.

Create an illusion where it appears that your hand has a hole in it. You'll see the results from when one eye gets conflicting information.

Your tongue can sense about 6 different flavors (salty, sweet, bitter, sour, umami/savory, and fat), but your nose provides a lot more "taste" information than you realize when you eat.

Experience a spinning spiral...you won't be hypnotized, but you'll see what happens when you look away. It's like getting off a merry-go-round and everything keeps moving.

This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.

In this optics activity, learners use paint thinner to make a small jar seem to disappear inside a larger jar.

In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.

In this activity, learners will test soil content using their sample, some water and a container that seals.

In this online activity about anatomy, learners will drag and drop pieces of the heart into their proper positions and explore what function each part of the heart has.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

Which one of your eyes are dominant? Do they act independently or are they equally "in control?" This activity explores how your eyes work (or don't work) together.

We're told from a young age that we have 5 senses, but we have many more. One of which is our awareness of our own body part's orientation and position.

We listen to stereo music systems, tv's, and radios because it simulates being where the sound originates.

In this activity (13th on the page), learners complete a simple illusion trick to see through their own hand.