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What is the source of heat in Earth's mantle?

When an isotope breaks down, it sheds extra energy so that it can become more stable. This extra energy is radiated as heat and warms the mantle.Earth's core contains liquid metal that expands a little bit every year. This expansion causes heat to spread to the mantle.The Earth was created when gravity caused particles and hot gases to condense into a planet. Heat was also created by this process, and some of the heat is still around, warming the mantle.

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Where can you find facts about Jupiter?

The NASA Web pages aimed at adults include facts regarding Jupiter's physical characteristics, such as size, density and mass. It also contains facts regarding Jupiter's orbit, such as orbit circumference, average orbit velocity and orbit inclination. The pages of the NASA website aimed at kids contain facts about Jupiter's solar system, its atmosphere and how to find Jupiter in the night sky.\nThe Planets website offers facts about Jupiter such as the first sighting of the planet, number of moons and strength of its magnetic field. It also includes facts about the storm on Jupi..

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What is the most flammable substance in the world?

Chlorine trifluoride is a corrosive gas that is colorless and toxic. It's also available as a greenish-yellow liquid. It's capable of instigating combustion of virtually any material, including many that are generally considered to be fire-safe. Chlorine trifluoride is capable of burning flame retardants, asbestos, glass, concrete and sand. It's used in the production of uranium hexafluoride, UF6. Chlorine trifluoride is also used in semiconductor production, and it's an ingredient in rocket fuel and an industrial cleaner.

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From what is silver made?

Silver is a grayish metal in appearance that is also is soft and shiny. Its chemical symbol is Ag, and this metal has an atomic weight of 107.868 grams per mole. In its pure form, silver also is a good electrical conductor.For thousands of years, man knew about this metal. Silver has many applications, including the production of coins, mirrors and jewelry. Sterling silver jewelry is a silver alloy that consists of more than 90 percent of silver and about 7 percent copper.

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What is the freezing point of motor oil?

As a petroleum product, all types of non-synthetic motor oil will not freeze solid, though they will lose their liquid qualities at low temperatures. For example, diesel oil that is cooled below 0 degrees Fahrenheit will change color and texture, becoming whitish and solid to the point that it will not flow at all. This change is the result of the precipitation of dissolved waxes contained in the oil. Gasoline does not contain these waxes, which is why it is not as sensitive to cool temperatures as petroleum-based motor oils.

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Who has the biggest ears in the world?

Indian elephants have large ears, too, but not as large as the ears of the African elephant. One way to tell the difference between African and Indian elephants is the shape of the ear. African elephants' ears are shaped like the continent of Africa.\nThere are two subspecies of African elephant: the savanna, or bush elephant, and the forest elephant. Savanna elephants are somewhat larger than forest elephants and have tusks that curve outward. Both subspecies inhabit areas of South Africa, Nigeria, Rwanda, Ethiopia and other parts of the African continent. All elephants are vegetarian.

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How do pine cones reproduce?

What are commonly called pine cones are the female cones of conifers, but they grow male cones as well. Sometimes a single tree grows both types of cones, while in other species, each individual only grows one type. Male cones are relatively small and are soon dropped after they release their pollen into the wind. Female cones are much more conspicuous and are retained for longer periods.\nDuring seed development, female cones are kept tightly closed, usually sealed by a resin. Once the seeds are ready, most conifers open up their cones and release them. Some conifers, however, require specifi..

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What is the word equation for respiration?

Adenosine triphosphate molecules temporarily store the energy that is produced in this reaction. ATP is found in the cytoplasm of cells.The chemical equation for cellular respiration is the opposite of the photosynthesis reaction in plants. Photosynthesis involves plants using the reactants carbon dioxide and water to produce glucose and oxygen.

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Is tetrafluoromethane a polar molecule?

Tetrafluoromethane is also called carbon tetrafluoride, and is classified as both a haloalkane and a halomethane. It is a simple molecule that has one carbon atom in the middle that is bonded to four fluorine atoms around the outside. This molecule has properties that allow it to be used as a refrigerant, but it is most widely used in the manufacturing of electronics such as cell phones and computers. Heavy use of tetrafluoromethane is considered a threat to the environment because, in its gaseous form, it is a greenhouse gas that contributes to climate change.The tetrafluoromethane molecule i..

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At what temperature does water turn into steam?

High pressure constricts the ability of water to boil, so the higher the surrounding pressure, the higher the temperature required to boil water. At higher altitudes, where the pressure is lower, water boils at a lower temperature than it does at sea level. This is the reason for high-altitude cooking instructions found on the packages of many popular grocery items.

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