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**Earth and space science**

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This six-page, illustrated brochure answers the eight most frequently asked questions about black holes.

This activity is designed to help building student understanding of how scientific theories can change over time. Science theories change in the face of new evidence. However, when new explanatory frameworks, or theories, are proposed to explain... (View More) scientific phenomena, there is often a lengthy period during which groups of scientists use different competing theories to explain the same phenomena. During the activity, students are introduced to the geocentric and heliocentric models, students compare the two models, and then observe the time it took to change the theory underpinning the heliocentric model. This activity is part of the "Swift: Eyes through Time" collection that is available on the Teacher's Domain website. (View Less)

In this activity, students will learn how technology can help scientists solve a problem. One of the challenges scientists face with any spacecraft is attitude control. Students will be introduced to the problem of attitude control in space through... (View More) an experiment using angular momentum, and experience two different ways scientists address this problem. Students begin by discussing the technology(ies) that powers satellites and enable(s) them to move through space. Students then engage in an angular momentum experiment. Estimated cost of this activity does not include the cost of the bicycle wheel for the angular momentum experiment. This activity is one of several in the Swift: Eyes through Time collection available on the Teachers' Domain website. (View Less)

This lesson will help students understand the cultural nature of scientific research. Students explore famous scientists, their theories, places of origin, and their culture. They document scientific viewpoints of famous scientists throughout... (View More) history and discuss geographical region, culture, gender, and other factors effecting scientific theories and discoveries. This activity helps students understand the cultural nature of scientific research and how people interpret science in different ways based on their social environments. This activity is one of several in the Swift: Eyes through Time collection available on the Teachers' Domain website. (View Less)

In this activity, students use base-two slide rules, log tapes, and calculators to practice raising exponents in base notation and pulling down exponents in log notation. Students will develop an understanding that antilog notation expresses the... (View More) exact same idea as raising a base to a power. This activity is activity C2 in the "Far Out Math" educator's guide. Lessons in the guide include activities in which students measure, compare quantities as orders of magnitude, become familiar with scientific notation, and develop an understanding of exponents and logarithms using examples from NASA's GLAST mission. These are skills needed to understand the very large and very small quantities characteristic of astronomical observations. Note: In 2008, GLAST was renamed Fermi, for the physicist Enrico Fermi. (View Less)

In this activity students develop a simplified log table using information from their Log Tapes. Then they use it to solve arithmetic problems by looking up and combining logs, and finding the antilog. Because these problems are extremely simple,... (View More) students appreciate the logic of logarithms without getting bogged down in the arithmetic detail and error. This is activity B3 in the "Far Out Math" educator's guide. Lessons in the guide include activities in which students measure,compare quantities as orders of magnitude, become familiar with scientific notation, and develop an understanding of exponents and logarithms using examples from NASA's GLAST mission. These are skills needed to understand the very large and very small quantities characteristic of astronomical observations. Note: In 2008, GLAST was renamed Fermi, for the physicist Enrico Fermi. (View Less)