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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)

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)

In this activity, learners select the scientific instruments for their satellite, calculate the power requirements for all the subsystems, and construct a scale model of their very own Earth observing satellite using building blocks and/or Legos.... (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

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

This activity uses an episode of poor air quality over the Midwest and Eastern seaboard to engage students in an exploration of the collection, comparison, analysis and utilization of air quality data. With the aid of a camera, the EPA website and... (View More)

Audience: High school
Materials Cost: Free

This activity uses rain and flood events in the Midwest to engage students in an exploration of the collection, comparison, analysis and utilization of rainfall data. Students will access online precipitation data from both a ground-based station... (View More)

Audience: High school
Materials Cost: Over $20 per group of students

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