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Mathematics  
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This is a lesson about radiation and the use of the scientific method to solve problems of too much radiation. Learners will build snow goggles similar to those used by the Inuit (designed to block unwanted light, while increasing the viewer’s... (View More)

This is an article about detecting gravitational waves. Learners can read about how the Laser Interferometer Space Antenna (LISA) is detecting gravitational waves. An activity is included about how to build a mini-LISA and use it to explore the... (View More)

This is a booklet containing 11 problem sets and 9 "Extra for Experts" challenges. Learners use provided textual information to determine the scale (e.g., kilometers per millimeter) for images of the lunar surface, Mars, planets, stars and galaxies... (View More)

Audience: Middle school
Materials Cost: 1 cent - $1 per student

This is an activity about the Aurora Borealis or Northern Lights. Learners will plot the Auroral Oval in the northern hemisphere and determine the height of the northern lights using Carl Stormer's triangulation method. This activity corresponds to... (View More)

Problem: How do you measure an angle with a protector, when that angle is between two solid walls? This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math... (View More)

Audience: Middle school
Materials Cost: 1 cent - $1 per student

This kinesthetic activity simulates the process of evolution by natural selection. Students take on the roles of crab-like predators that exhibit one of four variants of feeding appendage: a spoon, fork, knife, and chopsticks. The simulation runs... (View More)

This is an activity about determining the distance of a solar flare from the center of the Sun's disk. Learners will use transparency grids overlaid on images of the Sun in order to calculate the distance of a solar flare, similar to a signal... (View More)

This is an activity about observing the Sun. Learners will construct a pinhole projector to project an image of the Sun, observe and record the size of the projected image, and calculate the diameter of the Sun using the measurements and a known... (View More)

Using a metric ruler and protractor, students use triangulation to track a meteor’s path and to predict where meteorites might be found, and calculate velocity using supplied distance and time data. The resource is part of the teacher's guide... (View More)

Audience: Elementary school
Materials Cost: 1 cent - $1 per student

This activity shows how an ordinary ruler can measure human reaction time (RT). Learners will convert a standard ruler into a time ruler (relating time and distance) and measure each others RT. They will also calculate means and variances and the RT... (View More)