Why is the crust less dense than the core

Atoms involved in blank covalent bonds do not share their electrons equally

Thermal energy of a substance is determined by the movement of the molecules and the potential energy of the arrangement of molecules. Heat transfer will stop when thermal equilibrium is reached. It depends upon the substance how long that takes.

The direction of the magnetic field produced by an electric current will change when the direction of the _ changes.

The line of latitude that is zero degrees latitude is the

The great plain is sometimes called a breadbasket. why is that a appropriate name?

State two any uses magnet in daily life

How does changing elevation affect air pressure?

How much force is needed to push a 54kg sled that is accelerating 5 m/s^2

Who was brilliant mathematician used the data of tycho brahe to prove accuracy of copernicus basic ideas of motion of planets?

Explain why the bird offspring will differ from its parent more than the amoeba offspring will be from its parent