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How Plants Grow
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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.
What's Hiding in the Air?: Acid Rain Activity
As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.
Composting
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In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.
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
Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.
Do Plants Need Light?
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.
Why Does Food Spoil?
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In this activity, learners will conduct an experiment to discover methods of reventing foot mold growth on food.
What Does Life Need to Live?
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In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
TerrAqua Investigation Column: What is the Land-Water Connection?
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In this investigation, learners plant seeds in a 2-liter bottle filled with soil that is connected to a water source below. Over the next few weeks, learners observe how the plants grow.
Estuaries
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An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.
Mighty Seeds
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In this biology experiment, learners plant soybean seeds in plaster of Paris, witnessing firsthand the mighty power and ability of plants to grow in adverse conditions.
Bendy Bones
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In this activity (on pages 19-24 of PDF), learners soak chicken bones or eggshells in vinegar for several days.
Nutrients in an Estuary
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In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks.
2-Liter Landfill
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In this activity, learners gain a better understanding of how household/school waste breaks down in a landfill. Learners collect trash and then create miniature landfills in 2-liter bottles.
Kimchee Fermentation Chamber
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Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.
Bury Me Not!
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This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition.
Seeds: Roots and Shoots
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In this indepth hands-on activity, learners build a structure that allows them to observe the growth of roots and the correlation between root growth and stem extension.
How Might Elevated CO2 Affect Plants
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In this activity, learners conduct an experiment to investigate the effect of elevated levels on CO2 on plant growth.
Photosynthesis and Transpiration
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In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.