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6th grade Science Packet #4 The April Packet - Pittsburg Unified School ...

6th grade Science Packet #4 The April Packet Thermal Energy: is the total amount of energy in a substance due to the motion of the particles in a system. Particle: is a small piece of matter. Kinetic Energy: is energy due to mass and speed of the object. Temperature: is a measure of the average kinetic energy of the particles in a system.