Narrow Search

Filters: Your search found 895 results.
SMD Forum - Primary:
Earth Science  
Sort by:
Per page:

Now showing results 871-880 of 895

In this introductory global change investigation, students gather and record visual and written data from their surroundings, and through analysis, show how the sampling window chosen for examination can affect an outcome, sometimes resulting in... (View More)

Students will "digitize" photographs of human faces using various grid sizes and shades of gray. Through this activity, they gain an understanding of image resolution and how much information is needed to answer various questions.This introductory... (View More)

This chapter provides background information to teachers about remote sensing. Topics include the electromagnetic spectrum, sensors and platforms, scale and resolution, geographic information systems, and ground truthing images. The reading is... (View More)

Students critically interpret graphical data and evaluate and discuss the difficulties inherent in interpreting and forecasting long and short term trends in this introductory climate change investigation. Graphs of data needed for this exercise are... (View More)

Students will research and evaluate information about global warming, identify decision-making criteria for action or lack of action, and decide what level of certainty is sufficient to take action. They should debate the issue of when we know... (View More)

The students will learn to identify watersheds on topographic maps by learning how to interpret contour lines and distinguish adjacent watersheds by the ridge line between them. Required materials include laminated 7.5 topographic maps of a local... (View More)

Students will collect samples of particles in the air on simple slides they make themselves. They will classify, count and chart their findings, draw conclusions, make predictions, and compare their findings to other available data. Supplies needed... (View More)

In this introductory activity, students learn about perspective, range and resolution and explain how the optimal viewing zone varies with what it is they want to know. Students view a large object such as a poster, store front, or even a brick wall... (View More)

In this activity serving as an introduction to remote sensing, students list what they remember seeing in a familiar environment, check their accuracy, and discuss the results. Then they apply their experiences and new skills to an unfamiliar... (View More)

Students will first try to imagine what their school and neighborhood look like from “A Bird’s Eye View” and draw a detailed picture. They will follow this with a study of an aerial photo of their town. Materials required for this activity... (View More)

Keywords: Geography