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For Your Eyes Only
Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

Make Your Own Pendulum
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In this demonstration about force and motion, learners will explore the forces that affect a pendulum A simple model pendulum comprised of a ball and string demonstrates how pendulums work as well as

Investigating Ice Worlds
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In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

Oh Buoy!
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Learners work in pairs to design, construct, and test a device that exhibits positive, neutral, and negative buoyancy. They test a number of different objects in water to see if they sink or float.

Colors of Stars
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In this activity, learners observe colors in the flame of a burning candle to explore connections between matter, light, color and temperature -- basic concepts of matter and energy.

A Hole in the Ground
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Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

Is It Living?
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This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things.

Does Air Weigh Anything?
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The demonstration/experiment provides quick proof that air has mass.

Mirror, Mirror
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In this activity, learners test the Law of Reflection based on experimental evidence. Learners produce raw data and explanations based on their data: pencil tracings of incident and reflection rays.

Tiny Geyser Models
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In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.
Coral and Chemistry
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In this experiment, learners will explore whether increased carbon dioxide makes our oceans more basic or more acidic.

Sea Level: On The Rise
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Learners will understand the relationship between climate change and sea-level rise.

Introduction to Ocean Zones
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In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

Properties of Dust
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In this activity, learners carry out a scientific investigation of dust in their classroom. Learners produce an analysis on graph paper of the dust they collect over the course of a few days.

Cookie Paleontology
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In this activity, learners will explore paleontology and archaeology. They will learn about technique as they excavate raisins and chocolate chips from cookies.

Wonderful Weather
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In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

Reason for the Seasons
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In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two days, with the second day occurring two or three months after the first.

Energetic Water
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In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.

Fossil Age Estimation Model
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In this activity (page 1 of the PDF under SciGirls Activity: Dinosaurs), learners will model how paleontologists estimate the age of fossil discoveries by extracting “fossil” playing cards from newspa

Watercraft
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.