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There are 15 videos in this series:
Iron is the metal with the strongest magnetic attraction. Steel can also be highly magnetized because it is made up mostly of iron. Discover more information on the magnetic value of different metals from a math and science teacher in this free video on magnets.
The trough of a wave is the point where the wave is at its lowest and smallest, while the peak is the highest point of the wave. Learn how the distance between two troughs or two peaks is called a wavelength with information from a math and science teacher in this free video on waves.
Photosynthesis is the function by which plant chlorophyll absorbs radiation from the sun, carbon dioxide and water, in order to create a reaction that produces sugar and oxygen. Discover how photosynthesis aids in human survival with information from a math and science teacher in this free video on photosynthesis.
The formula to calculate resistance is voltage, or potential difference, divided by current equals resistance in ohms. Calculate the resistance created by a power supply with instructions from a math and science teacher in this free video on science formulas.
The water cycle occurs through a process of water evaporation from the ocean forming clouds, which are then cooled and turned into precipitation. Find out how water on land forms streams that filter into the ocean with information from a math and science teacher in this free video on the water cycle.
A proton has one positive electronic charge and an immeasurable mass of one atomic mass unit. Find out how many protons would be required in order to get a measurable mass with information from a math and science teacher in this free video on atoms.
Trace fossils are defined as impressions or geological evidence of biological activity, such as foot prints, burrows or rock striations. Discover how trace fossils help scientists learn more about extinct animals and different time periods with insight from a math and science teacher in this free video on science.
The highest number of degrees latitude is 90 degrees north or 90 degrees south, represented by the north and south poles. Learn how to circles of latitude get smaller the farther north or south of the equator with information from a math and science teacher in this free video on lines of latitude.
The major cause of global warming is a thick layer of gases, including methane and carbon dioxide, that trap heat and energy near the earth. Find out how methane is produced by common things decaying on the earth with information from a math and science teacher in this free video on global warming.
Phosphorus has three isotopes, which result in the formation of phosphorus 31, 32 and 33. Phosphorus 32 and 33 are unstable isotopes that are radioactive. Learn more about how isotopes are formed with information from a math and science teacher in this free video on science.
Current represents the flow of electricity and depends on resistance, while voltage is the electrical pressure within an electrical circuit. Discover more about the role of resistance in electrical currents with information from a math and science teacher in this free video on electricity.
A simple machine is a device that uses a fulcrum and lever system to perform a function, such as a cork screw or a basic lever. Apply force to a simple machine to discover the benefits of simple lever systems with insight from a math and science teacher in this free video on science.
A stable atom of uranium is made up of 92 electrons and 92 protons in the nucleus. Learn how radioactive versions of uranium will have a different number of protons with information from a math and science teacher in this free video on science.
Mass, which is the amount of stuff something is made of, is determined with the formula, force equals mass multiplied by acceleration. Use Newton's second law to determine the mass of an object with help from a math and science teacher in this free video on scientific equations.
Materials that can be recycled include oil, batteries, glass, metal, plastic, paper and oil. Find out the difference between reusing a product and recycling a product with information from a math and science teacher in this free video on recycling.
Science describes the method of observation, analysis and discovery to help explain how things work and why things happen in the physical world. Often, the scientific method is used as a reproducible way to analyze experiments, and it includes formulating a question, researching the topic, constructing a hypothesis, experimenting, analyzing the data and drawing a conclusion. This method is taught to children at an early age to aid in problem solving and to get them interested in the world around them. In this free video series on science and nature, a science and math teacher explains a variety of scientific information. Learn about trace fossils, global warming and recycling. Find out about the structure of the atom, the mass and charge of protons and information on isotopes. Learn about the most magnetic metal and the formula for figuring out mass, all with help from a teacher.
Steve Jones Steve Jones is an experienced mathematics and science teacher. He also has many years experience in the field of public speaking and debate, and he is an organizer of debate competitions for high school students. He is the chairman of the Hungarian branch of the English-Speaking Union, which is an international educational charity founded in 1918 to promote international understanding and friendship through the use of the English language.dkdk
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