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Showing results 1 to 14 of 14
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Recrystallization Test
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In this activity, learners recrystallize substances from solutions and make observations about the resulting crystals. This test can help further identify the unknown.
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Bready Bubble Balloon
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Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.
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Acid Rain Effects
Learners conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.
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Jem's Pykrete Challenge
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In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.
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Plaster of Paris
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In this activity (page 6 of the PDF), learners will observe both a chemical and a physical change.
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Amphibian Skin
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.
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Limewater
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This is a chemistry lab activity about solutions (page 6 of the PDF). Students make a limewater testing solution for carbon dioxide and explore the concepts of solubility and precipitates.
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Grow Rock Candy
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Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.
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The Ups and Downs of Body Temperature
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In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.
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Environmental Chemistry
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In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.
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Save Your Skin
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This is a fun activity about the power of the Sun and the importance of using sunscreen to protect your sensitive skin from its rays.
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Frog Eggs
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In this activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.
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The Effects of Acid Rain
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In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.
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Milk Carton Boats
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This activity (on page 2 of the PDF SciGirls Activity: Milk Carton Boat) is a full inquiry investigation into boat hull design.