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Light Bulb Challenge
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.

Oil Spot Photometer
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In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.

Total Internal Reflection
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In this activity, learners use a laser pointer, empty soda bottle, rubber plug and water to demonstrate total internal reflection.

Personal Pinhole Theater
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

Opti-Top
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In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

Safe in the Sun
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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

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.

Tools of Magnification
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

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.

Using Ohm's Law to Build a Voltage Divider
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In this activity, learners apply Ohm’s Law to construct voltage divider circuits. Learners discover how to read resistor codes and calculate resistor values.

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.

Science of Sunblock
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This is an activity (located on page 3 of the PDF under Stained Glass Activity) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particl

How Greenhouse Gases Absorb Heat
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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.