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A Funny Taste
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In this activity, learners explore the different salinities of various sources of water by taste-testing.

Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.

Convection Current
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In this activity, learners make their own heat waves in an aquarium.

Science at the Waterpark!
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This activity (on page 2 of the PDF under SciGirls Activity: Water Slides) is a full inquiry investigation into speed and motion and takes place at a water park.

Echolocation Lab
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In this lab, learners experience how dolphins and other echolocating animals use their senses to locate and identify objects without using their sense of sight.

Water Sphere Lens
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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

See It to Believe It: Visual Discrimination
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In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.

Water Quality and pH Levels in Aquatic Ecosystems
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In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e

Half Full or Half Empty
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In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.
The Bent Pencil
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In this optics activity, learners explore how light bends and affects what we see.

Make Money Appear Before Your Eyes
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In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves.
Mix and Match
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In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.

Release the Rainbow
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In this activity, learners create a water prism to break light into the seven colors of the rainbow.

Bending Light
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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

Sock It To Me
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In this activity, learners discover how sweating makes us feel cooler. Learners put on one damp sock and one dry sock and sit in front of a fan.

Bubble Tray
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In this activity, learners use simple materials to create giant bubbles.
Guiding Light
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In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).
Why is the Sky Blue?
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In this activity, learners create a "mini sky" in a glass of water in a dark room.

Vanishing Rods
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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.

Real Glass Xylophone
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In this activity, learners create a xylophone by filling glasses with different amounts of water and tapping them with a metal spoon.