Science Experiments

Magma is the term applied to molten rock beneath the surface of the earth. It is formed when hot (very hot) rocks experience a drop in surrounding pressure, or when subducted wet lithosphere is introduced into the mantle. When it "breaks out" onto the surface of the earth, we call it lava. A link can be found below.

heat,pressure,&chemically active fluids

One of the most important discoveries for modern mathematics made by Rene Descartes was the Cartesian coordinate system. Two other major discoveries are the law of reflection and parts of the law of conservation of energy.

what are all the instruments use to measure altitude

Sedimentary rock will most often display a fairly obvious layering, the result of multiple depositions of sediments. Fossils may be present, as well as loosely cemented grains of rock particles.

It is made of wood most of the time because it is not too heavy to carry and it is also strong and hard.

An acoustic sensor could be a microphone.

Makes it hard .(:

The mocules for cold air are slower so it makes it not bounce as high and the normal temperature bounces higher.

Save the heat in heat saver the only thermos that saves all the heat put into it Save heat with heat saver

To my knowledge, yes, they do. All cameras that I've seen have the hole at the bottom that you screw onto the tripod, so I think all cameras can be used on a tripod (well, definitely all modern cameras).

Soda makes smarties dissolve because the acid molecules gets to the sugar in the smarties, therefore, that much interaction and energy soon die down in the smarties and fade away (dissolve). It disolves because it is suger? I really do not know why! smaties are a soft compound and carbon in soda breaks the cels apart like acid. facts: soda makes the botom of your toungue sting but only for sec.

If i remember correctly it uses the graphite in a pencil as a crystal similar to that of other crystal radios.

In a control group, factors are consistant- the factors do not change

The Earth has a greater mass than you do. It certainly moves towards you, but much less than you do. This can be explained by Conservation of Momentum, or equivalently, by Newton's Second Laws and Newton's Third Law. (By the Second Law, Earth's force on you is the same as your force on the Earth. By the Third Law, the effect on a larger mass, of the same force, is less.)

Technically, as you jump up, the Earth is pushed down; as you come down, the Earth moves up (and meets you). But you weight little and the Earth weighs much more -- so don't expect to see any movement. Besides the Earth is less of a whole than you are. For instance, in a canoe, you jump out to the right. The canoe (and some water -- read "and some of the Earth") move to the left.

seismic waves

Seismic waves are energy that travel through the earth's layers, and are caused by the release of energy from the earthquake. This release of energy causes the crust to move, rip, and tear causing a lot of damage if close to the surface.

The pat answer is probably that a good conductor is a material that has a lot of free electrons in it. These electrons could be thought of as "unbound" to "parent" atoms, and that leaves them free to wander about in the material. When a voltage is applied, the electrons are more than willing to support current flow by moving through the conductor. There is a more sophisticated answer, and that is that the conduction band for a given material is low enough that it overlaps the Fermi energy levels of outer electrons in the atoms of the conductive material. The conduction band has a "threshold" energy, and it varies from material to material. Further, when valence electrons sit at Fermi energy levels higher than that "threshold energy" of the conduction band for that material, they're free to "help out" with conduction. And they will support it. In either model, recall that current flow is not the entry of an electron into one end of a wire and its emergence from the other. It is the entry of an electron into one end of the conductor, the subsequent "moving over" of electrons already in the conductor that are in the conduction band, and the emergence from the other end of an electron.

The sextant is used in celestial navigation.

the worms fart and create a wonderfull smelling gas

System Maintenance is very important because you need to keep your computer and system up to date and safe. It is very important to run security and windows updates everyday so that you can reduce the chance of getting viruses and spyware. It is also important to the performance of the machine because if you don't keep your computer clean then it's not going to run as good as it should.

Only 1% of bacteria is harmful to humans

it has increased the cost of living,made the cost of transportation high and even created job opportunities

Watt and his first wife Margaret had 4 children. Only two children lived to adulthood, James (1769-1848) and a daughter Margaret. She died in childbirth. James eventually took over his father's business.

Watt and his second wife Ann MacGregor had two children, Gregory and another Janette (also called Jessy). Jessy died in childhood and Gregory died in his twenties.

Two straight lines that meet at right angles are perpendicular.