Science

Edit Answers
123456789101112131415161718192021222324252627282930313233343536
Across
  1. 4. In the laboratory, volumes of liquid are usually measured with a(n)
  2. 7. The measurement of how much is contained in a given volume is called
  3. 9. When a substance changes states, it either gains or loses ___________ energy.
  4. 10. Of the three major types of nuclear radiation, what is the weakest?
  5. 13. Groups 3-12 are called the _____________ metals.
  6. 15. Fireworks exploding in the sky and giving off light are an example of a(n)
  7. 18. According to Boyle’s law, when the pressure of a gas increases, its volume
  8. 20. Soil, a salad, and sugar water are all examples of
  9. 21. he surface of water can act like a sort of skin due to a property of liquids called
  10. 26. A chemical reaction that absorbs energy in the form of heat is described as
  11. 29. Ionic compounds are electrically
  12. 30. Which of the groups contains the most reactive elements?
  13. 32. Which state of matter undergoes changes in volume most easily?
  14. 33. The minimum amount of energy needed to start a reaction is the
  15. 34. Chemicals that act as biological catalysts by speeding up reactions in living things are called
  16. 35. When an atom loses an electron, it becomes
  17. 36. A bottle of hydrogen peroxide that eventually turns into a bottle of water and oxygen gas is an example of a
Down
  1. 1. The force of a gas’s outward push divided by the area of the walls of the container is the gas’s
  2. 2. This is the most common element in the universe
  3. 3. The change from liquid to solid, or the reverse of melting, is called
  4. 5. The change in which ice absorbs energy and melts is a(n)
  5. 6. A chemical bond formed when two atoms share electrons is called a(n)
  6. 8. The resistance of a liquid to flowing is its
  7. 11. All elements are made of basic particles called
  8. 12. Two of the same atoms bonded together is called a(n)
  9. 14. In which state of matter are particles packed tightly together in fixed positions?
  10. 16. Which group contains the most elements?
  11. 17. The freezing point of water is the same as its
  12. 19. Electrons involved in bonding between atoms are
  13. 22. If you describe methane as a gas that easily catches fire, you are describing a
  14. 23. Who discovered the electron?
  15. 24. The substances listed on the left side of a chemical equation are the
  16. 25. A material used to decrease the rate of a chemical reaction is a(n)
  17. 27. Which parts of the atom have a negative charge and move around the nucleus?
  18. 28. Ions that are made of more than one atom are examples of a(n)
  19. 31. The ability to do work or cause change describes