The narrator os this video explains how to create a velocity-time graph from the position-time graph. He works through several examples after explaining the shapes of the position-time graphs. 

A movie critic would describe this resource as a bit formulaic, but that's what makes it work! The video explains the formula, or rules, for naming both covalent and ionic compounds. 

What is more important, style or substance? This video explains the difference between physical (style) changes and chemical (substance) changes. It uses many examples and various ways of determining which type of change has occurred. 

The properties of matter including buoyancy, viscosity, density, pressure, and more are explained in a video that also describes the various principles and laws that are associated with each property. 

Hey, crank up the thermostat, my computer froze again! In a thermoregulation video, learners see how organisms either maintain their body temperatures or do not. The instructor explains the difference between conduction, convection,...

Because salmon live both in salt and freshwater, they have physical (different urine concentrations) and behavioral (drinking more or less water) adaptations to maintain osmolality. In this osmoregulation video, the instructor...

Harboring resentment against others is just as real to your body as a dangerous situation and can invoke a fight or flight response. The video explores the fight or flight response in humans. Viewers see what is happening inside the...

When someone is hot and their face is red, it is due to capillaries bringing blood closer to the surface of our skin so more heat can be lost. In the video, learners explore homeostasis and its role in the human body. Four homeostatic...

The chances of a DNA mismatch occurring in DNA fingerprinting is one in a billion. Here learners see how using the differences in people's DNA, specifically Short Tandem Repeats (STRs), cutting them out using restriction enzymes, and...

Muscle tissue is three times more efficient at burning calories than fat. Here is a video that explores how form fits function, introducing anatomy and physiology. The instructor then explores homeostasis, hierarchy associated with...

The average adult human brain contains 100 billion neurons. In the video, scholars learn about brain lateralization and how different portions of our brain do different things. Learners then explore neurons, learning their parts and how...

Adults' bodies are made of 206 bones, whereas babies have about 300 different bones or areas of cartilage. Pupils explore the difference between exo- and endo- skeletons in a video about the skeletal system. They then see how bones are...

When at rest, humans exhale about 17.5 ml of water per hour, but they lose about four times that amount during exercise. The video shows learners how worms, insects, fish and humans all respire very differently. Viewers then explore the...

The human reproductive system contains the largest (egg) and smallest (sperm) cells in the human body. It's time for scholars to review the differences between asexual and sexual reproduction. The instructor reminds them how meiosis...

You will shed approximately 40 pounds of skin cells in your lifetime—wow! Scholars first learn about the multiple functions of our skin, both the epidermis and the dermis, and its role as a covering for the human body. The video then...

Flu vaccines work by calling on the immune system to produce antibodies against the virus without actually infecting the individual with the flu. Here class members see how a virus enters cells and the body defends itself. The...

Isn't a domain already a set of values, a territory, part of a web address, and an area of magnetism? In the last video, the instructor walks learners through a history of life on Earth. Scholars then see the seven characteristics of all...

Humans' entire DNA sequence would fill two hundred 1,000-page telephone books. In the video, the instructor discusses the essential characteristics of all life - genetic code, the central dogma, and shared metabolic pathways. Scholars...

The leader of the biology gang is known as the nucleus. In the video, learners see the different levels of the hierarchy of life. Scholars explore each level, listening to descriptions and seeing examples of each one. It is the second...

The ethylene gas emitted by the apple or banana helps to ripen a fruit when in close proximity. A helpful video explains how plants attempt to control their environment through hormones. It focuses on five specific hormones: auxin,...

Penguins, seals, and whales have countercurrent heat exchangers to limit blood flow in certain areas of their body, limiting their rate of heat loss to their environment. In this homeostasis video, the instructor explains that...

Humans can sense about 10,000 different odors. Young scientists explore how humans interpret the world around them using their senses. The instructor reminds learners of action potentials and the nervous system and then focuses on three...

The pineal gland in the endocrine system secretes melatonin which helps humans sleep. In this human body video, scholars explore the major parts of the endocrine system. The instructor explains the roles of hormones, glands, and cells...

In the late 1700s, Edward Jenner applied the scientific method and discovered that injecting people with cowpox prevented them from acquiring smallpox—leading to the first vaccine. In the fourth video of the series, individuals listen to...