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Showing results 101 to 120 of 131

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.

Gravity Fountains
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This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.

What Causes Wind?
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

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.

How Thick is Your Hair?
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In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair.

Breathing Blue
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

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.

Dinosaur Skull and Body Length Predictions
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In this activity (located on page 2 of PDF under GPS: Baby Dinosaurs Activity), learners will look for a relationship between skull size and body length among various dinosaurs.

Carbon Sequestration
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In this inquiry-based lesson, learners measure the biomass of trees, calculate the carbon stored by the trees, and use this information to create recommendations about using trees for carbon sequestra

The Shadow Knows II
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

Tree Growth Investigation
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This activity (located on page 3 of the PDF under GPS: Temperate Rain Forest Activity) is a full inquiry investigation into tree growth rates.

Out of Sight: Remote Vehicle Activity
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In this robotics activity, learners drive a remote-controlled car through a course to learn the challenges faced while trying to operate a planetary rover.

Leaf it to Me
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In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.
Cardio Comparisons
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In this activity, learners discover how their heart rate changes in different situations.
Double or More
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Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

Water Walk
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Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.

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.

Heart Rate and Exercise
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In this activity about heart health (on page 27 of the PDF), learners measure their heart rates after a variety of physical activities and compare the results with their resting heart rates, and with

Weather Vane and Anemometer
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In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.