Of course we all know what blood is, and everyone has had at least a minor injury involving blood. But what is it exactly? What's it made of? What does it do? Why do we die if we lose enough of it? Let's check out each component of blood...

Upon viewing the Solutions at Work video series, students will be able to do the following: Explain that a solution is a type of mixture made of two or more substances that are evenly distributed. Provide an example of a common solution....

Chemicals interacting with each other are one of the most fascinating topics in chemistry. Fireworks, burning flares, and rusting all illustrate chemical reactions. The different types of reactions are described, as well as the process...

We are able to become physically dependent on a wide variety of substances, which results in what we call drug addiction. What does this look like from a neurophysiological standpoint? What does the drug-addicted brain look like? Let's...

Learn the basics about plasma - the fourth state of matter, when learning about properties of matter. When ice is sufficiently heated, it melts to form water. It has therefore undergone a change of state – from a solid to a liquid....

This video explore the causes and dangers of pollution on our planet

Why do some substances conduct electricity, while others do not? And what is a semiconductor? If we aim to learn about engineering and technology, this will be a very important concept, so let's go through the basics now!

What are electrolytes? Yes, they're what plants crave. But they are also ionic solids dissociated in solution, such that they can conduct electrical current. Learn about solutions!

An acid is a substance that will dissociate in water to give a proton (or H+ ion) and a conjugate base. An acid is considered to be strong if dissociation nears 100%, and weak if dissociation is usually less than 1%. In this lesson, we...

This presentation provides information for getting help with drug and alcohol issues and interventions. It includes supervisors do's and don'ts in dealing with employee substance abuse issues.

This video discusses the effects of vaping on the body, comparing it to traditional cigarette smoking. It explores the pathways of inhalation and the potential harm caused by vaping products. The video concludes with recommendations for...

In the first part of this video we looked at diffusion to move gases and osmosis for the movement of water, from high concentration to low concentration down their concentration gradient. Active transport works in the opposite...

This video provides a concise overview of human embryonic development, starting from fertilization and the formation of a zygote, to the development of germ layers, major body systems, and finally the birth process. It emphasizes the...

What colour is the liquid flowing through your veins, arteries and capillaries? it’s not blue or red. But technically it’s actually yellow.The blood that you see when you cut yourself looks red because it contains millions of red blood...

Cell Structure and Function Set: 11. This clip examines the structure and function of the plasma or cell membrane.

In this video we are going to discover how cells take in useful substances and remove waste using three methods of transportation: diffusion, osmosis and then in the second part we will look at active transport. The exchange of materials...

We each have between 30 and 40 trillion cells in our body. With each cell containing our DNA, special cell machinery and the nutrients to keep our cells and us alive. But you may not have given much thought for the special protective...

This live-action video program is about the term phases of matter. The program is designed to reinforce and support a student's comprehension and retention of the term phases of matter through use of video footage, photographs, diagrams...

Upon viewing the Solutions at Work video series, students will be able to do the following: Explain that a solution is a type of mixture made of two or more substances that are evenly distributed. Provide an example of a common solution....

So the digestive system gets rid of waste from the food you eat through defecation. But lots of waste will also build up in the bloodstream as a byproduct of metabolism and other processes. What does the body do with this? It will...

What's the difference between a physical change and a chemical change? What are elements, compounds, pure substances, and mixtures? So many definitions to learn! Don't worry, Professor Dave will take you through the details.

This video provides a comprehensive overview of the harmful effects of tobacco and nicotine on the body, emphasizing the dangers of smoking and other tobacco products. It explains how tobacco use can lead to serious health issues such as...

Chemicals interacting with each other are one of the most fascinating topics in chemistry. Fireworks, burning flares, and rusting all illustrate chemical reactions. The different types of reactions are described, as well as the process...

Upon viewing the Investigating Mixtures, Solutions, Elements, and Comnpunds video series, students will be able to do the following: Understand that everything we see, touch, and even things we can't see are made up of matter. Understand...