Filters: Your search found 5 results.
Topics/Subjects:
Earth processes  
Materials Cost:
1 cent - $1  
Learning Time:
30 to 45 minutes  
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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)

In this laboratory activity, students observe what happens when a fluid of one density is placed in a fluid of a different density. The fluids are salt water and fresh water, cold water and warm water. They generalize their results to describe what... (View More)

The purpose of this investigation is to understand the change that takes place when water condenses from a gas to a liquid, and how a change in pressure affects this transformation. Materials needed for the experiment include a large (2L) soda... (View More)

This investigation requires students to locate several major U.S. cities using four different sources: an outline map, a nighttime lights image, an atlas map, and a space shuttle image. After analyzing and comparing the information from those... (View More)

This is an activity about identifying and comparing the Earth’s seasons. Learners will write paragraphs depicting scenes or events that have recognizable season-related elements, without revealing the intended name. The group will then play a game... (View More)

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