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Camera Projector
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In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.

LEGO Orrery
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Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

How Do We Convert Electrical Energy into Mechanical Energy?
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In this activity, learners make an electromagnet motor to demonstrate the most basic method of changing electrical energy into mechanical energy.

Observing Different Microbes
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In this activity, learners use a microscope to examine three different microbes: bacteria, yeast and paramecia. Educator will need to prepare the yeast solution one day before the activity.

Manufacturing Technologies: Making a Picture Frame
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Learners examine the manufacturing process while they make picture frames from cereal boxes.

Using Solar Energy
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In this activity, learners discover how solar energy can be used to heat water.

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.

Mapping Greenhouse Gas Emissions Where You Live
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In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

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.

Exploring the Ocean with Robots
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In this activity, learners are introduced to robotic submarines called gliders. Learners make “gliders” from plastic syringes and compare these to Cartesian bottles and plastic bubbles.

Short Circuit
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In this activity about electricity, learners explore what happens when you blow a fuse.

Achieving Orbit
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In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a sat

Forensic Science: Hair Sample Investigation
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This activity (on page 2 of the PDF under SciGirls Activity: Forensics) is a full inquiry investigation into how hairs from a crime scene are matched to suspects.

Pollution Patrol
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

Density Rainbow and the Great Viscosity Race
Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.

Squeeze the Stream
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In this activity related to flight, learners build a tiny stream channel to investigate how fluids (air and water) change speed as they flow between and around objects.

Torsion Drum
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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

Seeing Is Believing
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

Artificial Intelligence: The Intelligent Piece of Paper
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This activity explores what it means for a computer to be intelligent and introduces the topic of what a computer program is and how everything computers do simply involves following instructions writ

Build an Overhead Projector Spectroscope
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This activity guide includes instructions for building a spectroscope using a standard classroom overhead projector.