Students identify the different periodic trends. For this chemistry lesson, students discuss how elements are arranged in the periodic table. They apply what they have learned in a Jeopardy team game.

Students explain how elements are arranged in the periodic table. In this chemistry lesson, students group the eggs according to a certain pattern. They compare this to elements in the periodic table.   

Students build a model of an atom using an online program. In this chemistry lesson, students discuss the different parts of the atom. They complete an independent research about their chosen element.

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.

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...

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...

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...