Science Videos

Acid reflux drugs work in different ways, but all have the goal of reducing the acid in the stomach. Many also treat ulcers of the stomach and digestive system that can be caused by excess acid....

Yvonne Romero, M.D., of the Gastroenterology and Hepatology Department of the Mayo Clinic in Rochester, Minnesota, explains that antacids are not a long-term solution for chronic acid reflux...

Acid rain is precipitation that falls to the ground and is highly acidic. Rain, snow, sleet and fog can all contain higher than natural levels of acidity. Acid rain destroys natural resources and...

altitude illness

altitude sickness

The E-flat alto saxophone and the B-flat tenor saxophone are the most common instruments in the sax family for beginners. The alto sax is a bit smaller in size and often the one chosen by younger...

The E-flat alto saxophone and the B-flat tenor saxophone are the most common instruments in the sax family for beginners. The alto sax is a bit smaller in size and often the one chosen by younger...

atomic bomb

Dogs often appear to have a sixth sense when it comes to the weather. This can be explained by the fact that dogs have the ability to detect changes in barometric pressure that humans cannot.

A change or drop in barometric pressure as well as rise in humidity or extreme changes in temperature are common triggers for a migraine attack.

Batteries are used for providing direct current (DC) electrical energy to electrical devices. Determining which battery is appropriate to power the electrical device is important, because if the...

The Keirsey and Myers-Briggs personality tests, or typologies, are maps of human personalities. The two tests seem similar, especially when compared with other non-psychological typologies....

If you're looking for a science fair project, you may want to build this simple electric motor. An electromagnet results when the electrical current produced by the battery runs through the wire...

Specific density, more commonly referred to as "specific gravity," is the ratio of the density of one substance to the density of water, as noted in Schetz's "Fundamentals of Fluid Mechanics."...

The kinematic equations in physics are four really nifty formulas to find 1) velocity as a function of time, 2) velocity as a function of position, 3) position as a function of velocity and time,...

Escape velocity is the speed something has to go to break through Earth's gravitational pull. Escape velocity is important for rockets and space shuttles. They cannot get into outer space unless...

Your trig teacher requires you to have a graphing calculator to use during class, how a graphing calculator works or if you want to tackle the learning curve required to use one. Here are some...

Every living organism is made up of cells, which are the smallest living organism known to science. With thousands of types of cells within the animal-like and plant-like classifications, one...

The process of cellular respiration uses oxygen to break down sugars (stored energy) and gives off carbon dioxide as a byproduct. On the opposite side, photosynthesis uses carbon dioxide to store...

Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

Chemical formulas represent a common notation used to describe the components of a compound. Chemical formulas use abbreviations of elements and subscript text to note their quantities. For...

Chemical reactions change molecules into other molecules. They don't change atomic nuclei, thus, they can't change elements into different elements. Instead, they affect the electrons in the...

Many families are turning to home schooling as a way to return Christian beliefs to their kids' curriculum. Locating quality a Christian home school curriculum is essential. By following a few...

Citric acid is a natural organic acid which in 1784 was first isolated from lemon juice by Carl Scheele. It is still derived primarily from lemon juice. One of the most important effects of...

Coliform bacteria are an umbrella term for many types of bacteria, some of which can make humans ill. It has been found in food and drinking water, and its presence is an indicator of other...

There are so many popular fad diets and diet pills on the market today that sometimes it seems as though buying into all of it is the only way to succeed with your weight loss goals. However,...

Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

Google's built in calculator is easy to use and offers a wide range of options. Apart from the common functions, it also supports more advanced scientific calculations. Converting inches to...

Whether you're doing homework, running or measuring, being able to convert feet to miles can be useful. Use the following steps to make the calculation with ease.

Both gram and AMU (atomic mass unit) are units of measure. The gram is a much larger unit than the AMU. It is a unit we can use in the everyday world--we go out shopping and ask for 500 grams of...

For complex spreadsheets where many calculations must be performed, unit conversions may need to be done before they can be used. If you have measurements that were taken in one unit, you can...

Electrical conductivity quantifies the quality of a substance to conduct electricity. Conductance, on the other hand, quantifies this quality for a specific object. Being a more general measure,...

Acids release hydrogen ions when dissolved in water. Hydrogen (H) is usually the first element noted in a formula for an acid. Next noted are the one or two nonmetal elements in the acid. It's...

When power is removed from a DC (Direct Current) motor, it may continue to spin if the mechanical load is light. Electromechanical devices may be incorporated to stop the motion, or an electrical...

DC power supplies are ideal for short-range needs for electricity due to the consistency of electricity transmitted by the power source. Although DC power is not ideal for long distance...

Bottled water has a variety of sources and, therefore, brands differ. Distilled water, on the other hand, is always free of minerals and other substances typically found in drinking water.

DNA extraction is a multi-step process by which the genetic material within cells is removed and purified. Analysis of DNA after extraction can be a very potent tool for both medicine and...

Determining the paternity of a child is a serious matter. Both positive and negative determinations can affect the lives of individuals. Many criminal cases have been solved using DNA technology....

The DNA (Deoxyribonucleic acid) model is a double helix that is a representation of the basic building blocks of the genetic blueprint for the reproduction of life. The structure is modeled to...

DNA testing is used for a wide variety of purposes, including disease testing, forensics and genealogy research.

DNA fingerprinting, also known as DNA profiling or DNA testing, is a technique used to identify people based on their genetic material. Forensic scientists often use DNA fingerprinting as evidence...

Dry ice is solid carbon dioxide that forms when some refrigerated liquid carbon dioxide vaporizes, leaving behind solidified carbon dioxide with the texture of snow. The dry ice available to buy...

An electromagnetic floater is a device that floats metal objects between two magnets. The two magnets create a force between them and allow the objects in the middle to appear as though they are...

Testing a capacitor with a basic analog (needle type) ohmmeter is a fast method for determining the viability of the electrical device. In most cases, the analog meter will show the strength and...

Electric generators are "energy converters" that turn heat energy or kinetic energy (energy of motion) into electrical energy. The basic theory behind an electric generator is that variation of a...

Pontoon boats have become versatile fishing boats. Pontoon boats are highly maneuverable, have enough power to get to the fishing grounds and can be rigged for almost any freshwater fishing. One...

Nissan is one of the top manufacturers for outboard boat motors. Like any machine, Nissan outboard motors can often have problems, but the company provides some basic troubleshooting methods that...

Pontoon boats have become versatile fishing boats. Pontoon boats are highly maneuverable, have enough power to get to the fishing grounds and can be rigged for almost any freshwater fishing. One...

Continuity is one of those words that have a different meaning according to the subject you are dealing with at the time. Most of the time, we think of continuity as showing something that simply...

Electric snowblowers are very powerful machines that are easily capable of causing injury if proper safety precautions are not taken. They are responsible for a large number of accidents seen in...

Perhaps because reading and writing were rare a few hundred years ago, we have limited knowledge of the stories of our ancestors and their lives. The papers that have survived are treasured. Begin...

The Energy Star program lists products, such as refrigerators, that save energy. Because 70 percent of electricity is produced by coal and natural gas, lower electricity use by Energy Star...

Making a puppet using an empty bottle and a broomstick handle is one of the easiest arts and crafts projects you can do. A personalized puppet is a great way to spend a lazy afternoon with the...

Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

Making some simple changes when cooking meals can not only reduce your energy bill, but also minimizes your effect on the environment. The key to using less energy while cooking is understanding...

Odors are caused by small particles that break away from the source substance and float through the air. In the case of synthetic chemicals and substances like plastic, the smell is usually...

Bernoulli's Theorem, also known as Bernoulli's Principle, states that an increase in the speed of moving air or a flowing fluid is accompanied by a decrease in the air or fluid's pressure. This...

Magnet schools are popular alternatives to regular district schools. Gifted children often benefit from being in a school that has a curriculum that complements their interests and talents....

Fossil fuels are defined as any naturally occurring organic fuel that is mined from the earth, such as petroleum, coal and natural gas. The burning of fossil fuels to run our car engines and heat...

Fossil fuels are defined as any naturally occurring organic fuel that is mined from the earth, such as petroleum, coal and natural gas. The burning of fossil fuels to run our car engines and heat...

Genetic engineering may sound totally modern, but farmers have been genetically engineering fruit trees for centuries. The methods used can range from the primitive to the cutting edge. You can...

Citric acid and ascorbic acid tend to become confused in our thinking--understandable since they're both found in citrus fruits and are both acids. But one of them is an important vitamin for good...

Have your home bursting with the taste and feel of an authentic Greek restaurant. Wow your guests with scrumptious Greek cuisine, music and a party they will never forget. Opa!

If you are interested in the health care field, but want a position that doesn't involve patient care, investigate a career as a Registered Health Information Technician. According to the American...

The search for making a perpetual magnetic generator is not a new one. The inventor, Peter Peregrinus, created what is known to be the earliest "magnet motor device" in 1269 A.D. There are many...

Weather is dynamic. We see this most dramatically when clouds form, combine and dissipate. We can watch them, follow their evolution and learn much about our climate.

Creutzfeldt-Jakob disease is an incurable neurological disorder. It causes a build-up and malformation of prions (a type of protein) on the brain cells ultimately leading to brain damage and...

There are so many distractions preventing children from realizing their full potential. Since teachers are forced to focus on the fundamentals of reading and math, subjects such as science aren't...

The Worker's Education Association (WEA) promotes easy educational access for adult U.K. citizens from all backgrounds. A volunteer-run charity, the WEA operates on local, regional and national...

Catching lightning bugs or fireflies can be the highlight of many children's summer evenings. Male fireflies blink as they fly to signal to female fireflies on the ground in a nest. Different...

While lightning rods and surge protectors both deal with electricity, they are distinct in their purpose and function. One protects the building structure; the other protects the electronic devices.

The Alpha Protein Acid diet refers to a diet rich in alpha lipoic acid, a powerful antioxidant. Diabetics and athletes are among the people who might be interested in increasing their alpha lipoic...

From the smallest computer fans to the largest electrical relays, electromagnets play a large role in everyday life. Electromagnets typically contain an iron core, and have magnet wire wound...

Organize memorabilia, office memos and family reminders on a bulletin board that doesn't require pins or clips. Create a magnetic board with supplies from craft and hardware stores that's not only...

DNA is the basic building block of every living thing. DNA is so important that every school requires its students to understand how it works. Making models to demonstrate the process is a common...

Bottled water has a variety of sources and, therefore, brands differ. Distilled water, on the other hand, is always free of minerals and other substances typically found in drinking water.

Directional compasses work by sensing the electromagnetic energy fields produced by the Earth's core. Much like a magnet, the Earth has a magnetic north and south pole, which creates enough...

Microsoft Word gives you the flexibility of being able to change the measurement units that are displayed in Microsoft Word. As a default, Word uses inches as the measurement unit. When you change...

People often hear methane gas when talk turns to harmful emissions in the environment. There are two sources of methane gas. It can be caused either by human activity or by nature. Methane gas is...

Neodymium speaker drivers are the newest in speaker technology, offering increased power and decreased weight. The terms "speakers" and "drivers" are sometimes used interchangeably, and refer to...

Nickel, the 28th element, comprises 60,000 parts per billion of the matter in the universe. Nickel is the weakest of the three ferromagnetic elements. The following steps will aid in your search...

Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

High oil prices and concern over global warming have renewed interest in nuclear energy, which as a means of generating commercial electricity, had been moribund in the United States since the...

Although the nuclear medicine specialty is small, technicians are in demand jobs at hospital nuclear medicine and radiologic technology departments. The field for Nuclear Medicine Technicians has...

The earth's core is made up of iron ore. Early man made tools and weapons from the iron ore they extracted from the earth and refined. Only meteorites carry pure iron ore, and the deposits locked...

We all know that water plays a vital part in our health. Technology has taken it a step further and possibly improved our drinking water with oxygenation. The jury is still out on whether...

Nuclear energy is produced through radioactive decay. Though you can find radioactive elements anywhere in the periodic table, most nuclear energy comes from the actinide elements in the table's...

Petri dishes are a common item found in both professional and educational science labs. Unfortunately, budget restrictions force companies and educational establishments, such as high school and...

One of the tasks that you need to perform to maintain your aquarium is monitoring the pH of the water. This will tell you if the water is acidic, alkaline or neutral. There are many instruments...

Plant cells differ from animal cells in that they contain cell walls and chloroplasts. They are eukaryotic cells with the ability to perform photosynthesis, except for those found in the roots...

Pop bottle collecting allows you to get into the fresh air and nature while providing you will some healthy, old-fashioned exercise. Not only will you get a rush of adrenaline when you find old...

Circuit boards are common in most electronic gadgets today, but inventors and home hobbyists often strive to create something new. Because they need particular circuits that they can't buy in any...

What's worse than your heater breaking down in the dead of winter? To ensure your warmth and prevent problems and expenses, it is imperative that you have your heating system serviced once per...

Today electricity generation systems for homes are available that can reduce your home energy costs substantially if not completely. Small electricity generation systems can be built or purchased...

Acids release hydrogen ions when dissolved in water. Hydrogen (H) is usually the first element noted in a formula for an acid. Next noted are the one or two nonmetal elements in the acid. It's...

Wasps are actually helpful insects because they prey on many plant-eating pests. Usually wasps prefer to avoid humans, but if they nest too close to a dwelling, they can present a problem....

Water is life and health is wealth. Therefore, we must protect our lives safe by drinking clean water. Read on to learn more.

The printing industry has transformed during the last decade due to the radical improvements in computer technology. So, the days of old-fashioned hometown printers are all but gone. However, the...

Rain gauges are devices designed to measure how much rain was received at a specific location over a designated period of time. Rain gauges are easy to use and can act as an accurate way to...

Children's science toys teach kids about the world while giving them a chance to have fun while learning. There are a wide variety of science toys on the market, and many manufacturers competing...

Science journals or science notebooks are becoming a popular tool used in many science classrooms. These notebooks allow students to improve their communication skills in science. They provide a...

Rubbing slippered feet along the carpet to generate static electricity, in order to playfully zap a friend or family member might seem like a harmless game. But the spark from static electricity...

Kosher salt is a large-grained, flaky salt that was originally developed for the purpose of koshering or treating meats to conform to the standards of Jewish dietary law. Unlike table salt, kosher...

When the time comes to beautify your lawn and gardens with new landscaping, it is vital to know the acidity of your soil. This will help determine what types of vegetation will grow best in your...

Thermal conductivity describes the ability of a material to conduct heat. According to HyperPhysics, heat is conducted through a liquid by the agitation of molecules. The heat source increases...

Actinium, the 89th element that glows blue due to its intense radioactivity, constitutes less than one part per billion of all matter in the universe. Students of science can find out more...

Heliox is short for "helium-oxygen" and refers to any gas mixture composed entirely of helium and oxygen. Heliox is primarily used as a breathing gas for medical purposes and deep diving. The...

Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

Until recently, volcanic eruptions were feared, but accepted as unavoidable and unpredictable natural phenomena. With improvements in monitoring technology, however, scientists are now usually...

Water pressure is simply the weight of the water divided by the area of water in question. This calculation applies to a diver as much as it applies to a reservoir feeding a faucet in someone's...

Having your own weather balloon can give you an interesting hobby. There are many societies that offer amateur meteorologists the chance to get together and share their techniques and findings...

Weather is the stereotypical and democratic conversation starter: Everyone can say something about it, and it's rarely truly boring. But it's not just a subject for socializing: It affects us all,...

The Earth's atmosphere can be thought of as layers or bands encircling the planet. Each layer has its own characteristics. The stratosphere is the layer of atmosphere about 6 to 30 miles (10 to 50...

You like to play video games with your friends and family, or even by yourself, but sometimes you're afraid you miss out on what's going on. With a wireless Internet connection and the Nintendo...

If you have a weather buff in your midst or you're addicted to The Weather Channel, consider purchasing a home weather-monitoring system. Learn what to consider and how to select a system that's...

Carbon dioxide poisoning is also known as hypercapnia and respiratory acidosis. Carbon dioxide comprises only 385 parts per million in our atmosphere, but it can accumulate in the blood to toxic...

Taking a weightless or zero-gravity flight may be one of the most thrilling experiences of your life. As it becomes a more popular form of thrill-seeking, more people are looking into the...

Zinc, the 30th element, comprises 300 parts per billion of all matter in the universe. Zinc is the fourth most commonly used metal and has many applications. The following steps will aid in your...