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In this animated object, learners examine the kinds of physical and chemical changes that occur in substances. They practice identifying examples of each.
The Food Pyramid
By Michele Williams
In this learning activity you'll explore the food pyramid and the recommended services.
Introduction to Safety in the Chemistry Lab
By Bruce Bell
Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.
Science Lab Equipment - Pt 1 (Screencast)
In this screencast we are introduced to the lab equipment used to contain and dispense chemicals.
Introduction to the Periodic Table
By Mona Wenrich
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.
The Disulfide Bond
By Eileen Bouchard
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.
The Peptide Bond
In this animated object, learners examine the properties of the peptide bond and how the bond relates to the structure of hair.
Methods of Producing Electricity
By Terry Bartelt
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
How Pressure Changes Boiling Temperature
By Terry Bartelt, Terry Fleischman
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.
Endothermic vs. Exothermic Reactions
In this animated object, learners examine how the heating or cooling steps in a manufacturing process work to control a chemical reaction.
Element Symbol Practice
Element Symbols 1-20
Normal Human Development 0-6
RAC Champlain - Recognition of Acquired Competencies
Science Final Review
Choose the correct word or definition of the terms.
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