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Flashcards

Unit 4 Flashcards (Grade 7 Science)

Morgan Frois English 40 cards

Cards in this deck (40)

  1. 1What is one way that matter can be changed/altered?By adding or taking away heat
  2. 2What are the 3 states of matter?Solid, liquids and gasses. Plasma is also one but it is not as well known.
  3. 3What is all matter made up of?Tiny particles.
  4. 4What in matter is always moving?The tiny particles are constantly in motion.
  5. 5The particles in ______ have _________ between them.The particles of matter have space between them.
  6. 6True or false: adding heat makes the particles move faster.True.
  7. 7What is a solid?A solid is a form of matter where all the particles are attached to each other in all different directions, the shape of a solid is clearly defined, there is limited movement between the particles and it has the least amount of kinetic energy.
  8. 8What is a liquid?A liquid is a state of matter where the particles are loosely attached to each other, it will always take the shape of its container, the space between the particles is larger and the particles have more kinetic energy than a solid.
  9. 9What is a gas?Gas is a state of matter where the particles are not attached to each other whatsoever, has no shape, the space between the particles in the largest, has the greatest amount of movement and the most amount of kinetic energy.
  10. 10What is ice?Ice is the solid state of water and the freezing and melting points of ice are both at 0 degrees.
  11. 11What is the liquid state of water?Water is the liquid state of water and the boiling point of this substance is at 100 degrees.
  12. 12What is steam/condensation?Steam is the gas state of water and the point of condensation is at 100 degrees.
  13. 13What is conduction?Conduction is the transfer of heat energy between substances in contact with each other.
  14. 14What is a conductor?A conductor is a material that allows easy heat energy transfer.
  15. 15What is an insulator?An insulator is a material that does not allow easy transfer of heat energy and is a poor conductor of heat.
  16. 16What is convection?Convection is the flow of heat energy that involves moving liquid or gas particles.
  17. 17What are convection currents?Convection currents are particles in a liquid or gas in a circular pattern.
  18. 18What is radiation?Radiation is the transfer of heat energy by invisible waves that are transferred from the source, radiant energy.
  19. 19What are the waves that come from radiant energy called?Infrared waves.
  20. 20What are good absorbers?Dull and dark things.
  21. 21What are good reflectors?Light and shiny things.
  22. 22What is thermal energy?The total amount of kinetic energy of a substances particles due to movement or vibrations.
  23. 23What is heat energy?Energy that transfers from a substance that has a higher amount of kinetic energy to a substance with a low amount of kinetic energy.
  24. 24What is kinetic energy?The energy of movement.
  25. 25What is renewable energy?Energy sources that can be replaced over time.
  26. 26What is non-renewable energy?An energy source that cannot be replaced over time.
  27. 27What results in the increase and decrease of kinetic energy?Adding and taking away heat.
  28. 28What is temperature?The measurement of how hot or cold matter is.
  29. 29What is heat?Energy that is transferred by a difference in temperature.
  30. 30What does heat affect?The volume of solids, liquids and gasses.
  31. 31What is expansion?When a substance increases in size, volume and quantity because of the transfer of heat to a substance.
  32. 32What is contraction?When a substance becomes smaller because heat transfers from warmer to cooler matter.
  33. 33What is the coldest temperature on Earth?Absolute Zero.
  34. 34Who was John Locke?A man who preformed an experiment 300 years ago with a few pans and 3 temperatures of water. This experiment lead to the invention of a thermometer.
  35. 35Who invented the first device to measure temperature in the 1590s?Galileo Galilei.
  36. 36Who was Gabriel Daniel Fahrenheit?He was the first person to use Galileos device in the 1700s and developed a more accurate thermometer.
  37. 37Who developed a different meaning for temperature in 1742?Anders Celcius.
  38. 38What are the 3 different ways to measure temperature?Kelvin, Celcius and Fahrenheit.
  39. 39What are the 3 most used fossil fuels?Coal, natural gas and oil.
  40. 40—

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Flashcards on Unit 4 Flashcards (Grade 7 Science) , created by Morgan Frois on 15/04/2021.
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