Tyler DeWitt, PhD
Science With Tyler De Witt: Significant Figures Made Easy! (1.2)
This introduction to significant figures discusses basics of multiplication and division. [5:01]
Tyler DeWitt, PhD
Science With Tyler De Witt: Learn to Convert Numbers of Scientific Notation
This tutorial explains how to add and subtract numbers written in scientific notation, whether or not they have the same exponent. [7:12]
Tyler DeWitt, PhD
Science With Tyler De Witt: What Is a Weighted Average?
Watch this tutorial to answer the following questions: What is a weighted average? How do you calculate a weighed average? Weighted averages are used for atomic mass and atomic weight, based on the mass numbers of various isotopes.
Tyler DeWitt, PhD
Science With Tyler De Witt: How to Calculate Atomic Mass Practice Problems
In this tutorial, find out how to calculate atomic mass, by multiplying the atomic weight of an atom by the percent abundance expressed as a decimal.
Tyler DeWitt, PhD
Science With Tyler De Witt: Bytesize Science: The Chemistry of Snowflakes
The video tracks formation of snowflakes from their origins in bits of dust in clouds that become droplets of water falling to Earth. As each snowflake rises and falls through warmer and cooler air, it thus develops its own distinctive...
Tyler DeWitt, PhD
Science With Tyler De Witt: Introduction to Moles
A tutorial which explains what moles are and why they are important. Learn how to abbreviate the mole number (Avogadro's number) using scientific notation, and how giant this number is. [10:50]
Tyler DeWitt, PhD
Tyler De Witt: Gas Stoichiometry: Equations Part 1
Examples and practice problems of solving equation stoichiometry questions with gases. [5:38]
Tyler DeWitt, PhD
Science With Tyler De Witt: The Day: Maple Syrup the Modern Way
Tony Denning of Maple Leaf Farm in Canterbury started making maple syrup after he was laid off from his construction job three years ago. The sugarhouse is now a modern maple-producing operation using miles of plastic tubing, a vacuum...