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Now showing results 1561-1570 of 1944

In this interactive, online activity, students explore the nature and composition of comets by selecting and mixing different elements and compounds found in a comet's nucleus. Students then observe the results of their mixtures upon the appearance... (View More)

Audience: Middle school
Materials Cost: Free

This interactive, online activity allows students to explore myths, legends, and facts connected to the appearance of comets throughout history. Upon completion of this activity students will have read about comet facts, history, and discoveries.... (View More)

Keywords: Reading
Audience: Middle school
Materials Cost: Free

This 2-page color fact sheet briefly describes NASA's Kepler mission, its instruments, and ground system. Also included are tables listing the instrument parameters and the major institutions involved. Kepler is a spaceborne telescope specifically... (View More)

Audience: Informal education

This identification chart is a basic guide to observing contrails. It shows examples of the three types of contrails: short-lived, persistent, and persistent spreading. The chart is intended for use by students participating in the GLOBE program.... (View More)

Keywords: Clouds; Contrails
Audience: Elementary school, Middle school, High school
Materials Cost: Free

This article discusses an example of a practical use of the square root of 2 by explaining how this irrational number figures in printing two pages on one side of A series-sized paper. This resource is from PUMAS - Practical Uses of Math and Science... (View More)

Audience: High school
Materials Cost: Free per student

This lesson attempts to correct the common misconception that the Earth is closer to the Sun during the summer in the Northern Hemisphere. Proceeding from student preconceptions, small groups participate in an exploration of the cause of the seasons... (View More)

The purpose of this kinesthetic activity is for students to learn the relative motions of the Earth, Sun and Moon. Awareness of these different motions is needed to develop an understanding of the causes of the day/night cycle, the seasons and the... (View More)

This lesson addresses the common student misconception that the Earth is closer to the Sun during the summer in the Northern Hemisphere. This lesson encourages students to voice this misconception at the beginning of the lesson and then attempts to... (View More)

Keywords: Orbit; Tilt

This lithograph shows the break-off of a large iceberg from the Pine Island Glacier in West Antarctica. This event occurred between November 4th and 12th, 2001, and provides powerful evidence of rapid changes underway in this area of Antarctica. The... (View More)

Audience: Informal education
Materials Cost: Free

This is a tri-fold brochure about the solar storms known as coronal mass ejections. The text in this brochure addresses such topics as what a coronal mass ejection, or CME, is, how the Sun produces CMEs, how a CME behaves, when they happen and how... (View More)

Audience: High school