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DNA the Easy Way
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This demonstration can be used to help learners visualize DNA by lysing (breaking open) bacterial cells on a slide and “stringing up” the DNA with a toothpick in less than one minute.
Do Cities Affect the Weather?
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In this activity, learners explore clouds and how they form.
How can Clouds Help Keep the Air Warmer?
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In this activity, learners explore how air warms when it condenses water vapor or makes clouds.
Does Air Weigh Anything?
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The demonstration/experiment provides quick proof that air has mass.
What is a “Convection Cell”?
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In this demonstration, learners can observe a number of small convection cells generated from a mixture of aluminum powder and silicon oil on a hot plate.
Air Pressure
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In this experiment, learners use a blow dryer and water bottle to observe and record changes in air pressure caused by changes in temperature.