Classifying Matter (Morrison, 2:15)
How to classify matter given a particle diagram.
Chemical vs. Physical Changes (Morrison, 2:17)
How to distinguish between chemical and physical changes.
Measuring with Significant Figures (van Geel, 3:44)
How to accurately record a measurement to the correct number of sigfigs
Counting Significant Figures (van Geel, 3:33)
Given a number, how to determine how many sigfigs it contains (often necessary to do calculations)
Calculations with Significant Figures (van Geel, 6:10)
After a calculation, how to round an answer to the correct number of sigfigs (must be able to count sigfigs)
Fenceposting Length (van Geel, 5:25)
How to do a multi-step length conversion using fenceposting.
Scientific Notation (van Geel, 7:35)
Why scientific notation is used, how to use it properly, and how to enter it in different types of calculators.
Converting a Compound Unit (Genova, 2:03)
Converting a unit made of multiple units, such as g/L or miles/gal.