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Germ Tag
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In this version of tag, a large group of learners model how the body fights infection. Learners act as germs, as lymphocytes, and as the body's cells threatened by germs.

Trash Traits
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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

How to View a Solar Eclipse
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This is an activity to do when there is a solar eclipse!

Make a UV Detector
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In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence.

Wolf Survival
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In this activity, some learners pretend to be wolves, while the other learners pretend to be the prey of the wolf. The goal of the simulation is to have the wolves work together to survive.

Head in the Clouds
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In this activity, learners create a CloudSpotter wheel and record the different types of clouds they observe twice daily over several days.

Does the Moon Rotate?
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This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

Egg Carton Nursery
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In this activity, young learners will make their own flower seed nursery in an egg carton.

Extreme Sounds
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This activity (on page 2 of the PDF under SciGirls Activity: Extreme Sounds) is a full inquiry investigation into sound.

Make a Prism
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In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

Rubber Band Racer
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In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

Statistics: Steppin' Out
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In this math lesson, learners construct box-and-whisker plots to analyze and compare data sets. Learners investigate whether or not long-legged people run faster than short-legged people.

Protect That BRAIN!: Mr. Egghead
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This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

Measure the Sun's Size
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In this activity, learners make their own pinhole viewer in order to measure the size of the sun.
Growing Plants: Track Their Growth
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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

From Here to There
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In this water activity, learners discover ways to move water across the water table.

A Degrading Experience
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In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

Collect Invertebrates to Determine Water Quality
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This activity (located on page 3 of the PDF under GPS: Alligator Habitat Activity) is a full inquiry investigation into organisms and the health of their ecosystems.

Save Your Skin
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This is a fun activity about the power of the Sun and the importance of using sunscreen to protect your sensitive skin from its rays.

Spot the Sunspots
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In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.