Isotopes Worksheet #1
In this isotopes worksheet, high schoolers find the average atomic mass given the masses of two isotopes. They also calculate the atomic mass of elements given the percentages of each isotope.
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Chapter 2 and 3 Practice Worksheet - Formulas and Compounds
In this formulas and equations activity, chemistry apprentices write the chemical formulas given the names. They calculate percent composition, balance equations, and calculate the mass of a substance present in a fertilizer. This is a...
9th - 12th Science
New Review History's Thermometers
How is sea coral like a thermometer? Part three of a six-part series from NOAA describes how oceanographers can use coral growth to estimate water temperature over time. Life science pupils manipulate data to determine the age of corals...
9th - 12th Science CCSS: Designed