Dr. Martin McClinton
In this screencast, we review the positions of metals, metalloids, and nonmetals in the Periodic Table and the general characteristics of each.
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.
Calculating Formula Weight and Molecular Weight
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.
Learners read the definition of atomic weight and obtain the weights of elements by viewing the Periodic Table and charts that list atomic weights by name or symbol.
The Three States of Matter
By Dr. Miriam Douglass, Dr. Martin McClinton
In this animated and interactive object, learners examine the properties of liquids, solids, and gases.
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