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

This guide focuses on one big discovery in 2016 (the detection of gravitational waves) and one hot topic (the challenges in developing and embracing self-driving cars).