An igloo is made of compressed snow. Compact hardened snow is a great insulator of heat because snow is nothing but semi-frozen water with roughly 95% trapped air. The air molecules trapped between the tiny ice crystals create air...

Endothermic and Exothermic Reactions investigates heat-generating reactions and heat-consuming reactions by defining exothermic and endothermic.

Friction defines the term friction by providing examples and comparing and contrasting the three types: sliding, rolling, and fluid.

This video will explain how atmospheric circulation and global wind patterns affect the movement of air on the earth.

This video reviews the topics covered in the Energy series. In this series, we explore the various forms of energy, including mechanical, nuclear, heat, chemical, and electromagnetic energy. We delve into the concepts of kinetic and...

In this video, we explore the concept of energy conversion and how different forms of energy can be transformed into one another. The video also touches upon how plants convert electromagnetic energy from the sun into chemical energy...

This video provides a brief overview of nuclear energy as a source of electricity. The video also mentions the advantages, such as a large fuel supply and minimal environmental pollution, as well as the disadvantages, including high...

This video is a lecture presentation on the production of heat and carbon dioxide in respiration. The presenter explains the process of aerobic respiration, which is a chemical reaction between glucose and oxygen to produce carbon...

This video provides a brief and concise explanation of nuclear energy. It highlights the two main processes involved in nuclear energy production: fusion, which occurs in the sun and involves the joining of hydrogen nuclei, and fission,...

"How does a nuclear reactor provide energy? What causes a nuclear meltdown? And how do we make this safe?

This video explains the concept of momentum and how it is dependent on mass and velocity. It also covers the conservation of momentum and the different types of collisions. The video includes a simulation experiment with automobile...

This video provides an overview of reaction profiles, explaining the concepts of exothermic and endothermic reactions, as well as activation energy. The presenter defines each of these terms, provides examples of each type of reaction,...

Upon viewing the Investigating Chemical Reactions video series, students will be able to do the following: Define a chemical reaction as a process in which substances undergo changes to produce new materials with different properties....

An excerpt from Alcohol and the Human Body, a 1949 production of Encyclopaedia Britannica Films.

Upon viewing the Weather Around Us video series, students will be able to do the following: Define weather as the condition of the lower atmosphere close to Earth. Understand that weather is constantly changing. Understand that...

This video explains the concept of heat energy and its role in temperature and phase changes. The video also highlights how heat energy is responsible for phase changes, using the example of water transitioning from solid ice to liquid...

This video explains the difference between renewable and non-renewable natural resources, focusing on heating sources such as wood, natural gas, propane, and oil. The video also briefly mentions fossil fuels and other non-renewable...

Why do different liquids boil at different temperatures? It has to do with how strongly the molecules interact with each other. Find out all the different ways, and how to use them to make predictions about matter!

This video explores Iceland's innovative use of geothermal energy, which fuels over 75% of their homes and powers various facilities. It highlights how Icelanders tap into the country's intense geologic activity, including volcanic...

Chemiluminescence is a light emission phenomenon due to a chemical reaction. Let's learn how and why this type of chemical reaction occurs.<b<br/>r/>

Luminescence part 1/3

Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

The video discusses how to measure entropy change in chemical reactions through an experiment using calorimetry. It explains the concepts of exothermic and endothermic reactions and how to calculate heat energy change. The equipment used...

In this video, the teacher explains the physics behind roller coasters and how engineers design and build them. Topics covered include gravitational potential energy, kinetic energy, conservation of energy, friction, acceleration, and...

Sugar: this white wonder that gives us sweet satisfaction... but at a bitter price. What dangers are lurking in these snow white crystals? Is sugar the new tobacco? Can it really lead to other problems like diabetes? Let's investigate...