Heat and Temperature Flashcards

Grade 3 · Science · Flashcards

Study vocabulary for heat energy, temperature, and the three types of heat transfer.

Flashcards

heat: Thermal energy that flows from warmer objects to cooler objects
temperature: A measure of how hot or cold something is; measured with a thermometer
conduction: Heat transfer through direct contact between objects
convection: Heat transfer through the movement of fluids; warm rises, cool sinks
radiation: Heat transfer through electromagnetic waves; can travel through empty space
conductor: A material that transfers heat or electricity easily (e.g., metals)
insulator: A material that resists heat transfer (e.g., wood, rubber, fiberglass)
thermometer: An instrument used to measure temperature
thermal energy: The total kinetic energy of all particles in an object; related to temperature
thermal equilibrium: When two objects reach the same temperature and heat stops flowing between them
degrees: The units used to measure temperature on scales like Fahrenheit or Celsius
expand: To increase in size; most materials expand when heated
contract: To decrease in size; most materials contract when cooled