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Topics/Subjects:
Physical sciences  
Educational Level:
Middle school  
Learning Time:
30 to 45 minutes  
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Now showing results 11-20 of 56

This activity provides a visual example of convection in fluids. Students will record their predictions and observations on diagrams of the experimental set-up showing convection currents. Materials required include hot and cold colored water,... (View More)

In this inquiry exploration, student design an experiment to test the absorption of heat by different earth materials. Materials required include plastic water bottles, soil, sand, water, thermometers, lamp with 60 watt bulb, and stopwatch. This... (View More)

In this introductory activity, learners investigate and discuss infrared images of various everyday objects, such as toasters, hairdryers, and running water, to learn about infrared imaging. Student questions about the false-color images help guide... (View More)

These short videos introduce learners to the electromagnetic spectrum though eight animations including an introduction to electromagnetic waves and one animation for each wavelength of the EM spectrum (Radio, Microwave, Infrared, Visible,... (View More)

The front of this poster is a cartoon profile of the atmosphere, showing the "good and bad" roles of ozone in the stratosphere, high troposphere, mid-troposphere, and surface. On the back is an article for students, beginning with an explanation of... (View More)

Keywords: Ozone; Spectroscope
Audience: Middle school
Materials Cost: 1 cent - $1 per student

In this lesson, students explore the visible light spectrum using a flashlight and red, blue and green theatrical gels or cellophane. They also record data on a worksheet, and learn about mixing wavelengths of light. A student worksheet, data sheet,... (View More)

This is an activity about magnetism. Using bar magnets, classroom materials, and a compass, learners will explore how bar magnets interact with one another and with other materials, use a compass to find the direction north, and use various... (View More)

This experimental activity is designed to develop an understanding that air has mass. Students conduct an investigation and observe the change in the position of a bar balancing a balloon inflated with air on one end and a uninflated balloon on the... (View More)

This is an activity about parallax. Learners will explore the concept of parallax and then simulate the discovery of Pluto with a Blink Comparator via an online interactive.

Audience: Elementary school, Middle school
Materials Cost: Free

This is an activity about the electromagnetic spectrum and how light is split into its component frequencies or colors. Using a diffraction grating, learners will observe four different light sources and sketch their spectra. This activity requires... (View More)

Keywords: Doppler effect
Audience: Elementary school, Middle school, High school
Materials Cost: Free