Science

A:

The biotic factors in an ecosystem are physio-chemical or nonliving parts of an environment, while abiotic factors are living components of an environment.

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    • How Many Satellites Does Jupiter Have?

      Q: How Many Satellites Does Jupiter Have?

      A: In 2011, most experts came to agree that Jupiter has a total of 67 satellites. Its four largest moons are known as the Galilean satellites: Europa, lo, Callisto and Ganymede. Around 50 of its satellites are less than 6.2 miles in diameter.
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    • What Causes the Cassini Division in Saturn's Rings?

      Q: What Causes the Cassini Division in Saturn's Rings?

      A: The Cassini Division, a gap in the rings of Saturn, is caused by gravitational pull from Saturn’s moon Mimas. The moon’s gravity affects the tiny particles that make up the rings, creating what looks like empty space. Other divisions in Saturn’s rings are the result of similar interactions with the planet’s moons.
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    • How Big Is Titan?

      Q: How Big Is Titan?

      A: Titan is 3,200.051 miles in diameter. It the second-largest moon out of hundreds in the solar system and is Saturn's largest. Titan's mass is 80 percent greater than that of the Earth's moon, and its diameter is 50 percent longer than the diameter of the Earth's moon.
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    • How Long Will the Sun Last?

      Q: How Long Will the Sun Last?

      A: The sun will last approximately another five billion years, according to NASA in 2012. The sun's light and heat are generated by the burning, or fusing, of hydrogen gas into helium gas.
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    • How Does the Astrolabe Work?

      Q: How Does the Astrolabe Work?

      A: Astrolabes work by presenting users with a graphic interface that makes it relatively easy to compute the positions of the sun, the moon and the stars. Astrolabes can be used for navigation as well as predicting the exact times for sunrise and sunset. Turned on its side, an astrolabe can be used as a mechanical calculator akin to a slide rule.
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    • What Is a Planetarium?

      Q: What Is a Planetarium?

      A: A planetarium is a facility designed to replicate the features of the universe in the night sky. Similar to a museum or science center, planetariums are developed in communities to offer education and entertainment to people curious about the field of astronomy. Visitors typically pay admission fees to enter just as they would at a theater or zoo.
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    • Why Is the Nitrogen Cycle Important?

      Q: Why Is the Nitrogen Cycle Important?

      A: The nitrogen cycle is important due to its role as a basis for the production of nitrogen that is essential to all forms of life. The atmosphere contains a vast majority of the natural nitrogen found on Earth.
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    • Where Do Archaebacteria Live?

      Q: Where Do Archaebacteria Live?

      A: Archaebacteria, more properly called archaea, are single celled organisms that live in a wide range of habitats, including the harsh conditions of hot springs. Thermophiles are arachea which grow best at temperatures above 45 Celsius, but some species thrive in much warmer temperatures. According to Reference.com, "Methanopyrus kandleri Strain 116 grows at 122 °C, which is the highest recorded temperature at which any organism will grow."
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    • What Are the Branches of Biological Science?

      Q: What Are the Branches of Biological Science?

      A: There are multiple branches of biology, including agriculture, anatomy, genetics, biochemistry, botany and zoology. Each branch of biology studies a specific aspect of nature and living organisms.
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    • What Is an Analogy for the Cell Wall?

      Q: What Is an Analogy for the Cell Wall?

      A: A good analogy for the cell wall is a sturdy fence or wall surrounding a castle, protecting the structure from harm and only allowing entrance by outsiders through specified gates and openings. In this scenario, the wall also keeps inhabitants safe inside, preventing them from venturing out into potential danger.
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    • What Does "metabolism" Mean?

      Q: What Does "metabolism" Mean?

      A: According to the Merriam-Webster dictionary, "metabolism" is defined as the chemical process a plant or an animal uses to create energy needed for survival. Metabolism is responsible for everything from digestion to breathing and muscle movement.
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    • What Is a Zygote?

      Q: What Is a Zygote?

      A: A zygote is the result of the union of an ovum (egg cell) and a sperm cell. It remains a zygote until it begins to divide; at that point, the zygote becomes an embryo.
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    • What Is Nuclear Fission?

      Q: What Is Nuclear Fission?

      A: According to the International Atomic Energy Agency, nuclear fission is the process by which large, heavy atoms split into lighter ones, releasing substantial amounts of energy in the process. This can occur due to natural radioactive decay, or it can be triggered by an atomic collision. Nuclear fission can power reactors or create massive explosions if uncontrolled.
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    • What Are Natural Plastics?

      Q: What Are Natural Plastics?

      A: According to the New York Times, natural plastics, or bioplastics, are environmentally safe alternatives to conventional plastic. They are made from plant materials, such as vegetable fats or starches. Because starch is composed of polymers like petroleum, the base of conventional plastic, it serves as a viable substitute.
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    • What Is the Chemical Formula for Ice?

      Q: What Is the Chemical Formula for Ice?

      A: Ice is the solid form of water that is created when water freezes at a temperature of zero degrees Celsius, so it has the same chemical formula of water, which is H2O. Water consists of two atoms of hydrogen and one atom of oxygen.
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    • What Is the Atomic Theory?

      Q: What Is the Atomic Theory?

      A: The atomic theory is that all matter is made up of tiny units or particles called atoms. This theory describes the characteristics, structure and behavior of atoms as well as the components that make up atoms. Furthermore, the theory states that all elements are made up of identical atoms.
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    • Which Elements Are Used for Making Coins?

      Q: Which Elements Are Used for Making Coins?

      A: Copper, zinc, nickel, gold, manganese and silver are the elements used for making coins. Common U.S. coins, such as the penny and dime, are made mostly of copper.
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    • How Is Cooking Related to Chemistry?

      Q: How Is Cooking Related to Chemistry?

      A: Cooking is related to chemistry because the preparation of many types of foods involves chemical reactions. When cooks understand how chemical processes work during cooking, they are able to make adjustments and produce better foods.
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    • How Many Colors Are in a Rainbow?

      Q: How Many Colors Are in a Rainbow?

      A: There are seven colors in a rainbow: red, orange, yellow, green, blue, indigo and violet. The acronym ROYGBIV, pronounced "Roy G. Biv," is a popular mnemonic to remember the colors in order.
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    • What Does a Prism Do?

      Q: What Does a Prism Do?

      A: Refracting prisms take advantage of the fact that light makes changes in direction when passing from one material to another, but that different wavelengths bend different amounts. Thus, prisms can split white light, which is actually light made up of multiple wavelengths, coming in at one angle into its constituent colors going out at different angles. They can also do the opposite, condensing multiple color rays into one white ray.
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    • What Colors Make Green?

      Q: What Colors Make Green?

      A: Green is made by mixing blue and yellow. A mixture containing more blue than yellow makes dark green, while a mixture with more yellow than blue makes lime green, and a blue-and-yellow mixture with white added makes pastel green.
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    • Are Burgundy and Maroon the Same Color?

      Q: Are Burgundy and Maroon the Same Color?

      A: Maroon and burgundy are terms for separate colors in the same color family. Both maroon and burgundy are dark, cool reds. However, burgundy is based on the color of French wine and is a darker, grayish red, while maroon is based on the color of chestnut shells and is brownish.
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    • What Two Colors Make Maroon?

      Q: What Two Colors Make Maroon?

      A: To make the color maroon, combine red and blue hues until the desired shade is obtained. Maroon can lean more towards red or purple depending on individual preference.
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    • What Two Colors Make Orange?

      Q: What Two Colors Make Orange?

      A: Yellow and red combine to make orange. Orange is a secondary color while yellow and red are primary colors. All colors can be made from a combination of the three primary colors: yellow, red and blue.
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