Schooling Online
Chemistry Skills: Units
Did you know that (at least) one mark in the HSC Chemistry exam comes from using the correct units? If you know your SI units well, then you’re guaranteed a free mark! If only the rest of the exam was that easy! This lesson will cover...
Professor Dave Explains
Practice Problem: Density of a Gas
If we can use the ideal gas law to find the molar mass of a gas and therefore identify the gas, what can we do with the density of a gas? Well, pretty much the same thing, it just involves one extra calculation, so let's give it a try!
Catalyst University
y=mx+b for the Arrhenius Equation (Ln|k| vs [1/T])
y=mx+b for the Arrhenius Equation (Ln|k| vs [1/T])
Professor Dave Explains
Practice Problem: Molar Mass of a Gas
We know about the ideal gas law, but what are some clever things we can do with it? Well, how about identifying an unknown gas by solving for its molar mass? Sure, why not!
Catalyst University
General Chemistry | Heat Capacity (q=smΔT) [Example 2]
Here, we perform a sample calculation for heat capacity in which we solve for a temperature (T) using q=smΔT.
Catalyst University
General Chemistry | Ideal Gas Law (PV=nRT) [Example #1]
In this video, we will do an example calculation using the ideal gas equation of state, PV=nRT. [Solving for volume, V]
Professor Dave Explains
What Are Standard Conditions?
Sometimes we do chemistry or take measurements at something called "standard conditions". What does this mean? It refers to a particular temperature and pressure, since these are factors that will often affect the experiments we do....
Catalyst University
Calculating Activation Energy on Excel (from Arrhenius Equation)
Calculating Activation Energy on Excel (from Arrhenius Equation)
Professor Dave Explains
Converting Between Temperature Scales (Celsius, Fahrenheit, and Kelvin)
If you're American, you're familiar with the Fahrenheit scale, so 30 degrees is cold and 100 degrees is hot. But in the rest of the world, nobody uses this scale! They use Celsius, and to them, 30 is pretty darn hot. Furthermore,...
National Institute of Standards and Technology
Desperate Measures!
In their first adventure, the SI Superheroes (aka the International League of Measurement Units) use the power of measurement to help a stranded soccer player get home.
Visual Learning Systems
Metric Length and Temperature: the Kelvin Scale
Through colorful animations and common everyday examples, this video helps students learn how to measure length and temperature using the metric system. Both the Celsius and Kelvin temperature scales are explained in depth. Emphasis is...
Professor Dave Explains
Kinetic Molecular Theory and the Ideal Gas Laws
I bet many of you think that the ideal gas law must prohibit passing gas on the elevator. That's a very good guideline, but there are other important laws we must know! Let Professor Dave run you through the details.
Schooling Online
Physics Skills: Units Part 1
The Ancient Greeks believed that everything is made by combining four elements: earth, water, air and fire. It turns out that there’s actually seven elements in science – watch this video to find out what they are! This lesson will...
Schooling Online
IB Physics Measurement and uncertainties: Units Part 1
The Ancient Greeks believed that everything is made by combining four elements: earth, water, air and fire. As it turns out, there are seven elements in science – watch this video to find out what they are! This lesson will introduce the...
Curated Video
How Thermometers Measure Temperature
In this video, we learn about the history and functionality of thermometers. From Galileo Galilei's Thermoscope to today's alcohol or mercury-filled thermometers, we explore how temperature is measured using the movement of a colored...
Curated Video
Our Sun
Through telescopic video and photos combined with animated graphics, students will learn about the layers of the sun and its effects on earth, the moon and all the objects in our solar system and the universe.
Professor Dave Explains
Heat and Temperature
We all know what it's like to feel hot or cold. But what is hot? What is cold? What does temperature really measure? Don't pretend like you haven't lost sleep over this. Well you don't have to fret any longer, Prof Dave will take you...
msvgo
Properties of matter and their measurement
It gives information about physical properties of matter & various units used in the measurement.
Professor Dave Explains
Mercury: The Innermost Planet
It's time to take a tour of the solar system, one object at a time! First up is Mercury, the planet that orbits closest to the Sun. So closely in fact that there is no atmosphere, and things get very toasty during the daytime. What else...
Professor Dave Explains
Classification of Stars: Spectral Analysis and the H-R Diagram
So we have made it through the dark ages, and are now a few hundred million years into the lifetime of the universe. There are plenty of stars all over the place, but are they all the same? How can we classify stars? Let's go through the...
Curated Video
Nationwide march to support the homeless
The Coldest Night of the Year walk gives people a taste of life on the streets during winter while raising money for the homeless and poor across Canada
Curated Video
Laval beats Queen's in U Sports men's basketball final for 1st-ever national title
Laval Rouge et Or defeat Queen's Gaels 77-71 in the gold medal game of the U Sports men’s basketball national championship.