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Exploring Forces: Gravity
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

Gummy Growth
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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.
Forwards and Backwards: pH and Indicators
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Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

Sniffing for a Billionth
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This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

Comparing Sizes of Microorganisms
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In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

Incredible Shrinking Shapes
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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

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.

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.

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.

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.

Pea Brain!: Explorations in Estimation
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In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing.

Exploring at the Nanoscale
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This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

Size Wheel
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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

Gravity Fail
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In this activity, learners try pouring water out of a regular cup and a miniature cup. It’s harder than it sounds! Learners discover that different forces dominate at different size scales.

Skateboard Disaster
Learners examine collisions between two skateboards carrying different masses. They learn about conservation of momentum in collisions.

Super Spinners
Learners build at least two different spinners (tops) to investigate how mass distribution, size, and shape affect the length of time the spinner spins.

Be a Scanning Probe Microscope
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In this activity, learners investigate Scanning Probe Microscopes (SPM) and then work in teams using a pencil to explore and identify the shape of objects they cannot see, just as SPMs do at the nano

Swing in Time
Learners build and investigate pendulums of different lengths. They discover that the longer the string of the pendulum, the longer the time it takes to swing.

How Do Things Fall?
Learners engage in close observation of falling objects. They determine it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.