Students study the Periodic Table to investigate basic properties of metals used to make coins. They discuss how historic events like the Civil War and Gold Rush had a direct impact on the trime.

Middle schoolers realize that density exists. They develop a mental model of density-to realize that something is going on that they cannot see to account for differences between materials.

Students apply their knowledge of relativity and nuclear radiation to the concept of cold fusion. They also read the article from the website listed in the related and resource websites and discuss the article with the class.

Learners experiment on magnets and electricity. In this physics lesson, students determine what factors affect the strength of a magnetic field. They design an experiment to determine how electromagnetic field strength varies with distance.

This activity allows students to gain an understanding of the relationship between the mass and relative abundance of an isotope and its effect on the average atomic mass of the element. Students will be given a random sample of the...

In this activity, students apply what they have learned about weighted averages, isotopes, and systems of equations to a new situation - coins in a sealed container. They learn some historical information regarding the composition of...

Students explore the concept of the mole as a measure of quantity. They build spreadsheets that allow them to convert between moles, grams, and atomic mass units for given quantities of everyday items, elements, and simple chemical...