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Showing 3 results from a total of 3

Teach

June 10, 2025 | Issue 73

Chemistry in a coffee cup: does coffee waste contain key elements for plant growth?

Circle of life: Explore sustainability, the circular economy, and chemical analysis by evaluating coffee waste as a potential soil enhancer.

Ages: 14-16, 16-19;
Topics: Biology, Chemistry, General science, Sustainability

Teach

September 1, 2022 | Issue 59

Playing with fire: stoichiometric reactions and gas combustion

Great balls of fire: Try these dramatic experiments with gases to illustrate stoichiometric reactions and combustion.

Ages: 14-16, 16-19;
Topics: Chemistry, Physics
   

Teach

October 2, 2019 | Issue 48

Classic chemistry: finding the empirical formula

Witness a spectacular chemical reaction and take some careful measurements to work out the empirical formula of a compound.

Ages: 14-16, 16-19;
Topics: Chemistry