A 'sharia’ Bernadine
1. How do particles in solids, liquids, and gases move? Ans: In solids, particles are very tightly packed and
orderly arrangement in a lattice and only vibrate in fixed positions. The forces of attraction between
them are strong. In liquids, there are bigger spaces between particles, and they move more freely and
take the shape of their container.
2. Define What is the kinetic theory of matter Ans: The kinetic theory of matter is used to explain the
changes in the states of matter. The changes in the state of matter are caused by heating or cooling.
3. Explain what happens to the temperature of a substance while it is changing state. Ans: This is
because the heat supplied to change the state of matter is used in breaking the forces and other
attractive forces. That means the temperature remains constant because no heat is absorbed or
released.