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Candy Chromatography
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Learners analyze candy-coated sweets using chromatography. Learners use this method to separate the various dyes used to make colored candy.
Luminescence
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In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions.
Sliding Gray Step
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How can you make one shade of gray look like two? By putting it against two different color backgrounds! This activity allows learners to perform this sleight of hand very easily.
Color Me Blue
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In this activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color.
Finding Red
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.
Light is Made of Colors
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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.
The Primary Colors of Light
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In this activity, learners work in groups of four to explore light. Learners create new colors from the primary colors of light from flashlights covered in theatrical gels or cellophane.
Give and Take
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In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.
Radial Chromatography
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How many colors make black? Gather as many water soluble black markers as you can find.
Painting a Picture with Air
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Create a painting by blowing air out of a straw. Push liquid acrylic paint around on some watercolor paper by aiming short bursts of air onto the paint puddle.
Canned Heat
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.
Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.
Glow in the Dark
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Learners experiment to see which colors of light will cause a phosphorescent (glow-in-the-dark) material to glow.
CD Spectrometer
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In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light.
Using Color to See How Liquids Combine
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Learners add different liquids (water, salt water, alcohol, and detergent solution) to water and observe the different ways the different liquids combine with water.
Seeing in the Dark
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
Invisible Ink
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a
The Colors of Flowers
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In this activity, learners perform an experiment to find out what determines a flower's color.
Light and Sound
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.
Dye Like A Natural
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In this activity, learners stain fabrics--on purpose!