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Educational Level:
Middle school  
Instructional Strategies:
Cooperative learning  
Learning Time:
30 to 45 minutes  
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In this activity, students research scientific discoveries that happened by accident in the past, and learn how gamma-rays were discovered by 20th century scientists. In the process, students develop an understanding that science theories change in... (View More)

This lesson examines the different roles scientists play in discoveries. Students will research various satellites and their uses. In addition, they will explore the different careers associated with the development of satellites, as well as, the... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free

Learners will use simple sports balls as scale models of Earth and the Moon. Given the astronomical distance between Earth and the Moon, students will determine the scale of the model system and the distance that must separate the two models. This... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free
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