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This guide explores the equivalence prinicple, a foundation of Einstein's general theory of relativity, and the effects of low-gravity space environments on materials and the human body.

Students will determine if an object's composition and the height at which can object is dropped affects its gravitational acceleration.

These discussion prompts encourage students to explore concepts related to gravity and how scientists measure it.

Use this short section to explore and compare other articles about measurements of the equivalence principle as reported by Science News since 1924.

Students will answer questions based on the Science News article "Galileo experiment re-created in space."

This guide reviews the Top 10 scientific discoveries from 2017, as reported by Science News, with a focus on key concepts covered across scientific disciplines.

In two activities, students can work in groups to play an organism matching game or create their own list of Top 10 science experiences from the semester.

These discussion prompts help students gain a better understanding of key vocabulary and concepts covered in the Top 10 articles of 2017.

Students will compare and contrast one of the Top 10 stories of 2017 with an earlier related article from the Science News archive.

Students will read and summarize one of the Top 10 stories of 2017, as reported by Science News.

This guide explores stem cells, gene therapy and related topics. Students can also measure the density of skin touch receptors in different areas of the human body.

Students will design and execute an experiment to determine the relative sensitivity of touch receptors in different areas of human skin using a two-point threshold test.