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Showing results 121 to 140 of 148
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Finding the Carbon in Sugar
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In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.
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What-a-cycle
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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.
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Weather Stations: Winds
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In this activity, learners use a toaster to generate wind and compare the appliance's heat source to Jupiter's own hot interior. Learners discover that convection drives wind on Jupiter and on Earth.
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Bernoulli's Blowout
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In this quick activity (page 1 of PDF under SciGirls Activity: Kites), learners will witness firsthand the effects of Bernoulli’s Principle by capturing a ping pong ball in the stream of air created b
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Bubble Suspension
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In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice.
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Low-Tech Water Filter for High-Impact Clean
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In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.
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Battling for Oxygen
Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.
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Extra Bounce
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In this indoor or outdoor demonstration, use a large and small ball to illustrate conservation of energy and momentum.
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Shrinking Coin
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In this demonstration, learners attempt to get a large coin through a small hole, the size of a smaller coin.
Dollar Bill Grab
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In this demonstration, learners observe as two cola bottles and a dollar bill are arranged in a specific order: one bottle, upside down and filled with water, is placed on top of another bottle, with
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Water, Water Everywhere
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In this activity, learners estimate how much water they think can be found in various locations on the Earth in all its states (solid, liquid, and gas) to discover the different water ratios in the Ea
Build A Hydrometer
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.
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Exploration Vehicles
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Using recycled materials, learners will design a transportation vehicle to carry an egg in an egg toss (a rudimentary model of a shock absorbent transport vessel).
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Squeeze the Stream
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In this activity related to flight, learners build a tiny stream channel to investigate how fluids (air and water) change speed as they flow between and around objects.
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Sand, Plants and Pants
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In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.
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Colored Shadows
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In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.
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Changing the Density of a Liquid: Heating and Cooling
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Learners investigate how the temperature of water affects its density.
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Magnetic Pendulums
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In this activity and demonstration about electricity and magnetism, learners observe how the current generated when one copper coil swings through a magnetic field starts a second coil swinging.
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Exploring Forces: Gravity
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.
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Water on the Move: Wind and Waves
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In this simple activity, learners explore ocean waves. To find out if water moves forward toward the shore, learners create waves in a simulated ocean (small aquarium tank of water).