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These discussion prompts cover the types of rocks and minerals found on Earth, and isotopes, their measurement and their applications.

Students will work in groups to explore available data and research various aspects of climate change and then present their findings to the class.

These discussion prompts cover radiant energy coming to and from Earth, the effects of global warming on the land, ocean, atmosphere and on species, and possible methods of averting or adapting to climate change.

Students can search the Science News archive for the earliest stories on climate change and for techniques to combat it.

These questions focus on observations about Earth's surface temperature over time and reasons behind the changing climate.

Students will test the effect of different conditions on lactase, an enzyme that catalyzes the conversion of milk sugar to simple sugar.

Students will test different types of catalysts and conditions for the light-producing luminol reaction.

Students will search the Science News archive to explore the history of catalytic material technology.

These questions focus on the use of catalysts in common industrial reactions and new research on alternatives to the precious metals currently used as catalysts.

This guide introduces students to the wide world of bacteria, bacterial infections, antibiotics and antibiotic resistance.

After reading about the results of a ban on trans fats, students can explore the nature of lipids in greater detail, including analyzing foods for the presence of fats.

This guide explores a wide variety of catalysts and their roles in chemical reactions, and covers recent research seeking alternative catalysts.