7) When there is pressure, tectonic plates can shift, which moves some of the lithosphere. It cooperates with the mantle of the Earth because the crust floats on top of it.
8)Magnets have a north and South Pole. Opposites attract while similar poles repel. Magnets can be cut in half and still have a north and South Pole. The earth is a magnet.
9) Compasses are magnets that have an attraction towards the Sun. By observing the time, the Suns position in the sky, and a compass, people can navigate much easier.
10) The steepness of the platform, the height of the platform, and the weight of the object.
12) Heat can travel in 3 ways; conduction, the transfer of heat through physical touch, such as touching a hot metal spoon; convection, there transfer of heat through liquid or gasses, and radiation, the transfer of heat through waves. An example of radiation is the heat from the sun or a fire.
