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This research-focused guide is inspired by the International Science and Engineering Fair, or ISEF, the world's largest international pre-college science competition.

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.

Students will search the Science News archive for other stories related to moon formation.

These questions focus on ideas about the origin of Earth's moon and evidence that supports various explanations of its formation.

This guide explores scientists' ideas for how the Earth got its moon, and the evidence that supports those ideas. Students can even calculate relevant lunar properties for themselves.

Working in pairs, students will analyze a graph of data from one of the cancer experiments described in "Cancer's sweet cloak."

These discussion prompts cover molecular structures and properties of sugars, proteins and lipids, as well as questions related to the immune system and cancer.

Students will explore the history of cancer therapy research by searching the Science News archive.

These questions, based on the Science News article "Cancer's sweet cloak," highlight observations about cell-surface sugars and their ability to hide cancer cells from the immune system.

This guide covers research investigating how cancer cells can hide from the immune system with the help of cell-surface sugars, as well as related topics.

This guide focuses on the Earth's record temperatures and the bigger issue of climate change, including its worldwide and species-wide effects.

This guide introduces students to the basics of battery design, including the chemical reactions involved, and even encourages students to build and test their own batteries.