Professor Dave Explains
The Third Law of Thermodynamics: Absolute Zero
Brr, it's so cold today! Could it get any colder? Is there a coldest possible temperature? Yes, there is! That seems strange, but now we know that temperature is just a measure of kinetic energy, so zero kinetic energy must mean zero...
Professor Dave Explains
Simple Distillation
We just learned two separation techniques, so let's learn one more! Distillation separates compounds by virtue of their differing boiling points. If two liquids are miscible, we can't perform extraction, but if they have very different...
Food Farmer Earth
Homemade Ricotta Cheese: A Simple and Flavorful Recipe
This guide demonstrates the easy process of making whole milk ricotta cheese at home, requiring just milk, citric acid (or lemon juice/vinegar), and salt. The emphasis is on gentle heating and careful handling to ensure the curds form...
Curated Video
Mercury: Properties, Uses, and Risks
Discover the properties and uses of mercury, as well as its historical significance, toxic nature, and various applications in thermometers, dental amalgams, batteries, and more. This video also emphasizes the shift towards safer...
Curated Video
Thermal Insulators Experiments: Comparing the Effectiveness of Different Materials
This is a lecture presentation about an experiment to compare the effectiveness of different materials as thermal insulators. The presenter introduces the concept of thermal insulation and explains how the experiment is set up. They show...
msvgo
Measurement of Time and Temperature
It describes time measuring instruments in ancient and modern period. It also explains how to measure temperature in a laboratory and clinic.
Weatherthings
Sun, Heat, Air and Wind: weather instruments, wind speed and direction
A curious pre-school child asks questions to a big kid about how weather works. Every answer is enlightening yet leads to another question. The little child learns that wind is air that moves, that may be gentle or strong and even...
Curated Video
Introduction to Distillation and Fractional Distillation
The video explains the concept and application of distillation, a technique used to separate mixtures by physical means based on the components' physical properties such as solubility and boiling points. The video explains the process of...
Schooling Online
IB Physics Measurement and uncertainties: Significant Figures
Using significant figures is as easy as watching Netflix! This lesson will bring back the basics: counting and rounding significant figures. To finish, we’ll explore how significant figures are related to accuracy and how to approach...
Curated Video
How to Determine Specific Heat Capacity of Substance - Physics Experiment
This video is a physics tutorial on how to determine the specific heat capacity of a substance, using the example of aluminum. The narrator explains the concept of specific heat capacity and the equation used to calculate it. The...
Visual Learning Systems
Observing Weather: Observing Temperature
Live-action weather footage helps students learn how they can observe the weather. Concepts and terminology: temperature, air pressure, weather systems, precipitation, and wind.
Curated Video
Specific Heat Capacity Experiments with Aluminum
The video is a lecture presentation on the specific heat capacity experiments. The presenter explains what specific heat capacity is and the equation used to calculate the required thermal energy. The presenter also discusses the...
Science Buddies
Measure Up with a Homemade Thermometer
Are you eager to understand how everyday items work, or interested in making useful objects and instruments yourself? Have you ever imagined you could build your own thermometer? In this activity, you will make a liquid thermometer to...
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...
Professor Dave Explains
Separating Liquids by Distillation
Looking at distillation as a separation technique.
Visual Learning Systems
Understanding Heat Energy and Phase Changes
In this video, we explore the concept of heat energy and its role in warming up our hands when we rub them together. The video also highlights examples of phase changes, such as ice melting into liquid water and further heating...
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...
Weatherthings
Sun, Heat, Air and Wind: wind and storms, cool air properties, predictions, summary
A curious pre-school child asks questions to a big kid about how weather works. Every answer is enlightening yet leads to another question. The little child learns that wind is air that moves, that may be gentle or strong and even...
FuseSchool
What Are Endothermic & Exothermic Reactions
An exothermic reaction gives off energy to the surroundings; like a fire giving off heat. An endothermic reaction takes in energy from the surroundings; like a snowman melting. Exothermic reactions transfer energy to the surroundings,...
Curated Video
Comparing Positive and Negative Numbers in Real World Situations Using a Number Line
This video, explains how to compare positive and negative numbers using a number line. They use real-world examples such as submarine depth and thermometer readings to illustrate the concept. By understanding the relationship between...
Weatherthings
Weather Things: Radar
Weather forecasting requires observation. Beyond the things we can see, hear and sense, meteorologists need detailed data to observe distant weather, whether that is distant along the ground, or distant up into the sky. Weather...
Curated Video
Understanding Temperature: Positive and Negative Numbers
In this video, students learn how to use positive and negative numbers by understanding temperature. The lesson covers the concept of a vertical number line, the difference between Celsius and Fahrenheit, and how to interpret different...
Weatherthings
Weather and Seasons: winter cold, snow, dressing properly
A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...
Weatherthings
Weather and Seasons: Weather jokes and credits
A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...