Students examine atomic structure and the octet rule.

Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.

Learners examine a table containing the names of common cations and anions. They then check their knowledge by answering a series of questions.

In this animated object, learners examine how gas volume varies directly with absolute temperature (K at constant pressure). An example of a sample of gas at two conditions of volume and temperature is used to illustrate the law.

Students use the pyramid method to solve percent problems. The pyramid grid provides a visual way to set up the equation.

Students read how to determine and calculate the dry density for a given sample of soil or aggregate based on the mass-volume relationship.

Students read how to determine and calculate the saturated density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.

Learners follow a four-step process to determine the empirical formula of a compound from the masses of its constituent elements. The molecular formula is determined in a fifth step using the molecular weight of the compound.

Students interpret pie chart information and identify the parts of a chart in an interactive exercise.

Become familiar with the elements by their atomic number and names

bingo game

Weathering and Mass Movements review

Review important vocabulary relating to the properties of matter.