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Human-powered Orrery
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In this space science activity, learners work together to create a human-powered orrery to model the movements of the four inner planets.

Vanishing Craters
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In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

Designing a Wall
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In this engineering activity (page 5 of PDF), young learners investigate how materials and design contribute to the strength of a structure, particularly walls.

Submarine: Lift Bag Lander
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In this activity (on page 4), learners create a submarine using a plastic sandwich bag. This is a fun way to learn about buoyancy and how captured gas can cause objects to float.

Submersibles and Marshmallows
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In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

File Card Bridges
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With two stacks of books and a few rolls of pennies, build two kinds of bridges--a beam span and an arch span--and see how much weight each of them can hold.

Mermaid's Purse
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In this activity (page 2 of pdf), learners craft a model of a skate egg case and come to understand that cartilaginous fish such as sharks and shakes employ reproductive strategies that differ from th

LEGO® Chemical Reactions
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This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

How We Know What The Dinosaurs Looked Like: How Fossils Were Formed
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In this activity (p.7-8 of PDF), learners examine fossil formation.

Thirsty Candle
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In this activity, learners will explore the dynamics of air pressure by using a candle, a cup, and a dish of water.

Infant Moon: Moon Mix!
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In this activity, learners investigate the Moon's infancy and model how an ocean of molten rock (magma) helped shape the Moon that we see today.

Echo Base Bobsleds
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The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

Understanding Albedo
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In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper

Recipe for a Moon
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In this activity, learners discover that the Moon, like Earth, is made up of layers of different materials. Learners work in teams to make models of the interiors of the Moon and Earth.

Blow-and-Go Parachute
Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth.

Forms of Carbon
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In this activity, educators can demonstrate how the nanoscale arrangement of atoms dramatically impacts a material’s macroscale behavior.

Biodomes Engineering Design Project
In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems.

Model Wind Tunnel
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In this activity, learners build a miniature wind tunnel to measure force. Learners construct the model out of Lexan plastic, a fan, and a precise digital scale.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.

Modeling the Seasons
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This activity provides instructions for learners to create models of the Earth and then to model a "day" on Earth as well as modeling the seasons.