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This textbook chapter summarizes the changes in the ecosystems found in the world's forests. This is chapter 2 in the unit, A New World View, which introduces global systems science, emphasizing the concepts of environmental diversity, Earth as a... (View More)

In this lesson, students will explain CRaTER's purpose and how it works. They will also design (using paper and pencil) a cosmic ray detector to answer their own questions. CRaTER's purpose is to identify safe landing sites for future human missions... (View More)

Audience: Middle school
Materials Cost: Free

In this lesson on cosmic rays, students will explain two examples of a cosmic ray detector. Includes information about student preconceptions and a demonstration that requires a geiger counter and optional access to a small radioactive source that... (View More)

Keywords: Cosmic Ray; Radiation
Audience: Middle school
Materials Cost: Over $20

This is an assessment activity for the The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) educational kit. Learners will make a poster that explains possible origins of cosmic rays, how they affect people, and what protects us here on... (View More)

Audience: Middle school
Materials Cost: 1 cent - $1 per student

In this lesson about cosmic rays, students will describe why cosmic rays are dangerous to astronauts. Includes information about student preconceptions. This is activity 3 of 4 from "The Cosmic Ray Telescope for the Effects of Radiation (CRaTER)."

Audience: Middle school
Materials Cost: Free

In this lesson, students will learn how cosmic rays were discovered and what they are - including their size and speed. Includes background information for the teacher, questions, activities and information about student preconceptions. This is... (View More)

Keywords: Cosmic ray
Audience: Middle school
Materials Cost: Free

In this activity, students use mathematics to understand tides and gravitation and how gravity works across astronomical distances, using an apparatus made from a slinky, meter stick, and a hook. A description of the mathematical relationships seen... (View More)

This is an educators guide to accompany the Journey to the Stars planetarium show. The materials for grades 3-5 include suggestions for activities to do before and after viewing the planetarium show, including class discussions about the Sun's... (View More)

Audience: Elementary school, Informal education
Materials Cost: Free

This is an activity about day and night as a result of the Earth's rotation. Learners will first identify what they already know about day, night, and rotation and will be asked to share any questions they may have. Then, a book is read out loud in... (View More)

This is an activity about how to model and label a solar eclipse. Learners will paint and label an illustration of the Sun and Moon as they appear during a solar eclipse. Learners will also use their illustrations of the Sun to write a descriptive... (View More)

Keywords: NSTA2013
Audience: Elementary school