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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.

Students will use Science News as a resource for discovering a research question that interests them and developing a testable hypothesis.

Students will discuss the scientific details that are left out of short news reports and explore how these brief reports can lead to ideas for original research.

Students can search the Science News archive for stories about student research at the International Science and Engineering Fair, ISEF.

Students will answer questions based on a series of brief news items, including describing how each demonstrates sound scientific inquiry.

Students will conduct their own experiments to analyze a variety of foods for the presence of fats, as well as researching types of fat and relating their findings to human health.

These discussion prompts ask students to think in more detail about lipids, their hydrogenation and related scientific areas.

Students will search the Science News archive for additional articles related to trans fats.

Students will answer questions based on the Science News article "Data back ban of artificial trans fats," with a special focus on data collected and analyzed by researchers.

Students will culture yogurt bacteria with and without antibiotics to test the bacteria's sensitivity and then stain microscope slides to determine if the bacteria are gram-positive or gram-negative.