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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."

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

To better understand the life cycle of stars, students will estimate the conditions involved in stars and element formation.

Students will answer questions related to the Science News article "Neutron star crash seen for the first time."

These discussion prompts cover topics related to materials science, magnetism, and biological adaptation and self-assembly.

In this activity, students will build, test and optimize their own batteries using various metal electrodes and liquid electrolytes.

Students will research specific battery types and report on what they find.

This teacher-led demonstration is a straightforward introduction to reduction-oxidation reactions.

These discussion prompts ask students to think about ways that different elements create varied results in battery design, and related redox reactions.

Based on the Science News article "Charging the future," these questions focus on battery design, how lithium-ion batteries compare with newer types and the nature of experimental design.

Students will calculate the angular momentum and density of the moon and consider the implications of the results for various theories of the moon's origin.