Building off young chemists' knowledge of the states of matter, kinetic molecular theory is the focus of the unit. Eight days of lessons including multiple demonstrations, one lab experiment, directed instruction, and worksheets,...

Video describes how moles are used in chemistry and how their size is measured. [4:33] Followed by a short quiz and a list of additional resources to explore.

Learn how to define a mole as a number, and estimate the size of a mole of some common objects. [3:18]

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will identify three methods for measuring the amount of matter in a sample. They will define the mole and its relationship...

By the end of this section, you will be able to state the ideal gas law in terms of molecules and in terms of moles; use the ideal gas law to calculate pressure change, temperature change, volume change, or the number of molecules or...

An introduction to the mole, a unit of measurement that quantifies atoms and molecules.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students investigate the mole concept, and learn three ways scientists to quantify things as tiny as atoms.

[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a gas can be compressed and identifies three factors that affect gas pressure. Students will describe the effects...

[Free Registration/Login may be required to access all resource tools.] Students read about and explore video clips, diagrams, and example problems using the Ideal Gas Law.

The world's roundest object helps solve the longest running problem in measurement- how to define the kilogram. A kilogram isn't what it used to be. Literally. The name, weight, and definition of a kilogram has been changing constantly...

Through informational text, interactive practice problems, virtual simulations, and video clips, students learn about the gas laws.