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9 terms

3rd grade Unit 4 Science - Heat Energy

STUDY
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thermal energy
energy that moves the particles in matter
heat
the energy of the motion of the particles in matter
friction
the force between two moving objects that tries to keep the objects from moving freely
conduction
the movement of thermal energy from one object to another where they touch
conductor
a material in which thermal energy moves freely
insulator
a material in which thermal energy can not move easily
convection
the movement of thermal energy from one place to another in moving liquids and gases
radiation
the movement of thermal energy without any objects touching or moving
thermometer
a tool used to measure how hot or cold something is