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This model demonstrates convection currents and uses water, food coloring, a cup of very hot water and a votive candle as heat sources. Movie clips of demonstration setup and convection in action are provided. This activity is supported by a... (View More)

This introductory textbook chapter presents data demonstrating decreased global biodiversity and its link to human activity. The resource includes a field-based student investigation of local biodiversity, links to current news articles, and an... (View More)

This is a lesson about geologic history. Learners will work together to create models of volcanic lava flows and analyze the layers that form on a planet's surface. They will sequence lava flows produced by multiple eruptions. Students will be asked... (View More)

In this lab activity, student teams hypothesize which source has a greater becomes CO² concentration: their breath, auto exhaust, or air in the classroom. They test gas samples from each of these sources, plot data, and hypothesize about the... (View More)

This textbook chapter outlines the historical development of the Theory of Natural Selection, presenting classic evidence including Darwin's study of finch beak variation in the Galapagos Islands and Kettlewell’s investigation of the pepper moth... (View More)

Keywords: Adaptation; Evolution
Audience: High school
Materials Cost: Free

This is a 15-day unit of inquiry-based lessons about the surface features of the Moon and the Earth and how these two worlds formed and continue to evolve. Students participate in real science as they help lunar scientists map the surface of the... (View More)

After researching cloud formations online or in the library, students create and share a PowerPoint presentation that describes and illustrates 12 kinds of clouds. A rubric for evaluating the PowerPoint is provided. The Students' Cloud Observations... (View More)

Audience: Elementary school
Materials Cost: Free

This lesson provides an opportunity for students to express their ideas through literature. Teachers will read a story on clouds to students, then take students outside to observe actual clouds. Students will create drawings of what they see,... (View More)

Keywords: Clouds
Audience: Elementary school
Materials Cost: Free

Emphasis is placed on preparing for severe weather events such as thunderstorms, tornadoes and blizzards. Following classroom discussion and internet research, students prepare and present a product (brochure, poster, video, etc.) on the... (View More)

Audience: Elementary school
Materials Cost: Free

Assuming the role of a meteorologist, students will proclaim one month as "Thunderstorm season" for their chosen study area. This decision will be based on analysis of deep convective cloud data downloaded from the Live Access Server. This lesson... (View More)

Audience: Elementary school
Materials Cost: Free