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Physical sciences  
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Now showing results 41-50 of 50

This is an activity about Earth's magnetosphere. Learners will use a magnet, simulating Earth's protective magnetosphere, and observe what occurs when iron filings, simulating the solar wind, blow past and encounter the magnet's field. This is the... (View More)

Audience: Elementary school

This is an activity about magnetism and magnetic forces. Learners will explore objects to which a magnet is attracted or repelled, and investigate the attractive and repulsive forces of two like and two unlike magnetic poles. This is the first... (View More)

Audience: Elementary school

This is an activity about magnetic induction. Learners will induce a flow of electricity in a wire using a moving bar magnet and measure this flow using a galvanometer, or Am meter. This is the fifth activity in the Exploring the Earth's Magnetic... (View More)

Audience: Elementary school

This 28-minute film was created to explain how our current understanding of the Milky Way was reached using many different wavelength of the electromagnetic spectrum. Please note, the link is to a direct download of the video; this is a large file -... (View More)

Audience: High school
Materials Cost: Free

This resource introduces the concept of wind chill, the formula used to measure it and relates it to the causes of hypothermia. A simple experiment using a pie pan, sand, fan and a thermometer demonstrates this concept. The resource is from PUMAS -... (View More)

In the state of Maryland, a local politician once claimed that sea level is rising because there are too many people putting boats on the open ocean. Could that result in a significant sea level rise, perhaps even destroy low-lying nations such as... (View More)

Audience: High school
Materials Cost: Free per student

In this kinesthetic activity, students learn how photons may be transmitted, absorbed, or scattered. Materials required include a small ball, an overhead projector, 4 clear cups, different liquids (milk, water, black ink, grape juice), and a... (View More)

A caller on an automotive-themed radio program asked for help with a problem. It seems that when it rained her windshield wipers sometimes turned themselves on. How is this possible? This resource provides an explanation by exploring electrical... (View More)

In this demonstration, a soda bottle, paper and straws are used to show learners that air has mass and takes up space. The activity is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and... (View More)

This resource uses an everyday example of walking a dog as a context where students can observe changes in shadows over the course of a day, and deduce that light travels and tends to maintain its direction of motion. The activity is from PUMAS -... (View More)

Audience: Elementary school
Materials Cost: Free per group of students
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