Science Videos

Molecules are made up of two or more atoms, such as hydrogen and oxygen to make water, or sodium and chloride to make salt. Discover how molecules are formed with important facts from a science...

What components or particles make up an atom? Continue learning science in this free educational video atoms and matter.

The electrons of an atom represent the energy levels, and there are usually as many protons as there are electrons. Understand how each level carries a prescribed number of electrons with...

The atomic number, as denoted on the periodic table, refers to the number of protons in a single atom of that particular element. Learn more about the organization of the periodic table with...

The model of an atom illustrates the nucleus, the protons, the neutrons and the electrons as they would appear through and electron microscope. See what an atom looks like in three dimensions with...

The water cycle illustrates evaporation and condensation as it occurs around the world to recycle the planet's water. Learn about the the earth's water usage with important facts from a science...

The transfer of matter refers to the changing states of matter, such as evaporation and condensation. Find out how matter can completely change and move with important facts from a science teacher...

The periodic table is a way to organize the elements that create the chemicals that form every physical thing in the world. Understand how the periodic table is organized with important facts from...

Atomic symbols consist of a letter abbreviation for the element and coordinating numbers. Identify elemental symbols with important facts from a science teacher in this free video on fundamental...

Atomic mass refers to the mass of the atom, which does not change regardless of the force of gravity. Understand the difference between mass and weight with important facts from a science teacher...

Different forms of matter are known as physical states, and scientists have been able to identify five stages of matter. Learn about the physical states of matter with important facts from a...

The five states of matter include liquid, solid, gas, plasma and Bose-Einstein condensate. Find out how matter can change from one state to another with important facts from a science teacher in...

The first three states of matter, solid, liquid and gas, can be illustrated by an ice cube, a solid, that melts into water, a liquid, and evaporates into the air, a gas. Understand the movement of...

Science is important to study to better understand the makeup of the world and the role the humans take in the universe. Discover the amazing world of atoms, molecules and matter with important...

Atoms are the smallest identifiable piece of matter that make up the building blocks of every physical thing. Understand the definition of an atom with important facts from a science teacher in...

Information technology, known as IT, refers to the study, design, development, implementation, support and management of computer-based knowledge. Discover the world of the IT industry, and learn...

PCM sound, known as post code modulation, is the basis for all digital audio in computers, home theater systems, Walkman devices and iPods. Understand the science behind PCM sound with information...

A computer projector works by transferring a signal through a VGA cable from the computer to the projector in order to display the image output onto a screen. Find out how to use a projector and...

Miniaturization in computer technology refers to the evolution of electronic devices as they become smaller, faster and more efficient. Discover miniaturization as it relates to cellular phones,...

Computers communicate through binary code, which is a series of zeros and ones, but they can also communicate through network cables, USB cables and wireless connections. Find out how computers...

The uses of a GPS are endless, but such uses could include navigating through unfamiliar territory, locating pets, finding lodging, restaurants and places of interest, and locating a vehicle....

Microwave magnetrons work by targeting the moisture in food and applying heat to that moisture. Understand the science behind microwave magnetrons with information from a computer network...

When reading electronic schematics, be sure to get a complete list of the symbols used before attempting to decipher it. Learn the meanings of each symbol to understand a schematic for electronics...

A system 7 sound is a sound file that was designed to work on the Mac OS system 7 operating system. Understand what a system 7 sound is, which is also codenamed Big Bang, with information from a...

A graviton particle is a theoretical particle, but it's believed to be what mediates gravity. Discover why string theory leads scientists to believe that graviton particles exist with help from a...

Einstein's theory of relativity states that light always travels at the same speed, regardless of an individual's frame of reference. Find out why Einstein's theory of relativity is essentially a...

A particle accelerator is a machine that uses magnet fields to accelerate tiny, charged particles at high velocities. Learn about the advantages of circular particle accelerators with help from a...

Subatomic particles are extremely small particles, and the three major types of subatomic particles are protons, electrons and neutrons. Discover how the activity of subatomic particles gives...

The law of conservation of energy states that energy can neither be created nor destroyed. Learn how a pendulum can represent the law of conservation of energy with help from a science teacher in...

Due to the large gravities of black holes, the effect of gravity on light is more pronounced, and light traveling past this gravity will slightly bend. Find out how light is sucked into a black...

A space-time continuum is simply the three dimensions of space combined with the dimensions of time. Find out how time slows down when objects are traveling at high velocities with help from a...

When considering bungee jumping, one must consider the elasticity of the rope and the weight of the person jumping, as this will determine how far down the person will drop. Learn about the...

When considering projectile motion, one should look at the horizontal and vertical features, meaning how far and how high the projectile will travel. Find out how projectile motion is significant...

Magnetic fields are generated by magnets, and some magnetic fields can be stronger than others, attracting objects called pheral magnetic objects. Discover how magnetic fields can repel as well as...

Genetic engineering has allowed insulin to be created in the lab instead of harvesting it from the pancreases of cows and dogs. Understand the development of synthesized insulin with information...

Genetic engineering can help grow better and healthier plants by writing the DNA to produce better offspring when it pollinates. Find out how this field of study can help the plant world with...

The history of genetic engineering began in 1953 when James Watson discovered the structure of DNA, after which scientists were able to understand and alter that structure. Find out how genetic...

Genetic engineering has many advantages, as it helps scientists view the future of life to cure diseases, develop medicine and study illness. Explore the benefits that genetic engineering has in...

Bacteria is used abundantly in genetic engineering to study life, disease and medicine. Understand how scientists use bacteria on a regular basis with information from a biochemistry professor in...

Genetic engineering is performed by re-writing the code in the DNA of a molecule, placing it inside of a cell and allowing the DNA to duplicate and morph. Understand the details of how genetic...

Cloning is a tool used within genetic engineering to replicate different types of cells. Discern between cloning as it is used to study and research organisms and the cloning seen in movies with...

Genetic engineering is practiced by those interested in life itself, and it is a field of study that has permeated through many different industries, including the pharmaceutical, food and health...

The dangers of genetic engineering can revolve around eliminating genetic diversity by creating only the best possible scenario for creatures, food and medicine. Understand why genetic diversity...

Scientists use genetic engineering as a tool to learn more about a particular organism or molecule. Find out how scientists use genetic engineering to fine answers with information from a...

Nanotechnology works by first understanding how things work at the submolecular or subatomic level. Understand how nanotechnology works to help with treating cancer with this information from the...

Nanotechnology information is available for kids through the National Science Federation and other government projects that promote nanotechnology to children. Kids from middle school and up can...

Nanotechnology is a new, unifying science that provides a different perspective from the physical point of view. Learn how nanotechnology brings together multiple scientific disciplines with this...

Nanotechnology was first discovered more than 40 years ago by Dr. Richard Feynman. Learn about the history of nanotechnology from the director of the California Institute of Nanotechnology in this...

Nanotechnology has impacted warfare by improving protection gear for soldiers, including anti-microbial protection to help heal a wound. Hear about nanotechnology warfare uses and also the MIT...

Nanotechnology has been used in sports for years. Tennis rackets, golf gloves and racing car bodies benefit from strong, lightweight nano composite materials. Learn more about nanotechnology and...