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Showing results 41 to 60 of 75

Cold Metal
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In this activity, learners discover that our hands are not reliable thermometers.

Earth Atmosphere Composition
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In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

Mold Mole Molds
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In this activity, learners make different shapes that hold exactly one mole of gas (air).

Atmosphere Composition Model
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In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

Test the Finger Wrinkle Hypothesis
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Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

The Pull of the Planets
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In this activity, learners model the gravitational fields of planets on a flexible surface.

Bend a Carrot
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In this activity, learners investigate the process of osmosis by adding salt to a sealed bag of raw carrots and comparing it to a control.

Bubble Trouble
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In this activity on page 15 of the PDF, learners measure the amount of bubbles that they make using a detergent.

Going Green
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In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

Greeting Card Boxes
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In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.

Exploring Size: Scented Solutions
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This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).
Investigating Density Currents
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In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

How Big is Small
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In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.

Temperature Tactics
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In this activity, learners explore the devices used over time to measure changes in temperature.

Masses & Springs
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In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

Sand Castle Saturation
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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

Round & Round
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In this activity, learners make and test fly paper helicopters. Learners use templates to create paper helicopters and then take take turns flying them in the air.

Heavyweight Champion: Jupiter
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In this activity, learners confront their perceptions of gravity in the solar system.

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

Sliding and Stuttering
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Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.