Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.

Learners view illustrations showing the direct dependence of the volume of a gas on temperature and consider the relationship between the Kelvin and Celsius temperature scales.

In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.

Students examine atomic structure and the octet rule.

In this interactive object, the learner examines the basic terms used in division. A quiz completes the activity.

Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.

Learners use basic math skills in a workplace situation.

In this interactive object, students view an animated depiction of Class 1 levers. A matching quiz completes the activity.

Learners view video clips demonstrating acid-fast staining procedures. Correctly stained slides are shown. The learning object includes two matching exercises.

Test your knowledge on enzymes.

Please review the information about soups by playing this game.

You'll practice solving problems using the rule for multiplying powers with the same base.

This game is about the Nucleic acids quiz