Students read about the basic organization and structure of the periodic table of elements. By clicking on the symbol, they can read that element's atomic number and weight. In an exercise, students identify elements as belonging to a group, a period, or neither.

In this screencast, learners examine the kinds of physical and chemical changes that occur in substances.

In this screencast we are introduced to the lab equipment used to contain and dispense chemicals.

By the end of this module, you'll be able to:

- Identify actions that can reduce biosecurity risk

- Develop a biosecurity action plan for a farm

- Select the most cost effective strategies

In this animated lesson, learners read about the disulfide bond, the second strongest chemical bond in the hair. This bond can only be altered by chemicals.

In this animated object, learners examine the properties of the peptide bond and how the bond relates to the structure of hair.

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

Learners study the effect that pressure has on boiling temperatures. Once a liquid has reached a full boil, additional heat does not raise the liquid’s temperature; however, pressure can vary the boiling point of a liquid. A brief quiz completes the activity.

In this animated object, learners examine how the heating or cooling steps in a manufacturing process work to control a chemical reaction.

Element Symbols 1-20

Choose the correct word or definition of the terms.

2nd six weeks vocabulary words (some physical science and some force and motion)