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These discussion prompts cover stem cells, gene therapy and the proteins of the extracellular matrix.

Students will search the Science News archive for previous articles about stem cells and gene therapy, and compare potential applications.

Students will report on the who, what, why and how of a treatment for a rare skin disease.

This guide connects the radioactive carbon-14 dating of newly exposed mosses in the Arctic to the bigger story of climate change.

Students will simulate the exponential radioactive decay and half-life of carbon-14 with pennies and a food coloring/bleach chemical reaction.

These discussion prompts cover the basics of radioactive decay and carbon-14 dating, as well as concepts related to climate change.

Students will search the Science News archive for stories related to frozen mosses, radioactive carbon-14 dating and global warming.

Students will answer questions about how scientists measure the age of newly thawed mosses in the Arctic, and the implications of those scientists' findings.

This guide explores the recent discovery of a neutron star collision and encourages students to make connections to stellar evolution, gravitational waves and fusion reactions.

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

These discussion prompts cover the principles of spectroscopy, stellar evolution and fusion reactions.

Students will search the Science News archive for other stories on neutron star collisions and gravitational waves.