MIDTERM SCIENCE STUDY GUIDE

Name ______Date ______

  1. What is the first step of any strategy? ______
  2. List the 6 steps of the Scientific Method. 1.______, 2.______, 3.______, 4.______, 5.______, 6. ______
  3. If you spill or break anything in the lab what should you do? ______
  4. Goggles are used for what purpose? ______
  5. What tool would you use to measure the length of your desk? ______
  6. List the SI unit for measuring: length ______volume ______mass ______
  7. How do you measure the volume of an IRREGULAR shaped object? ______
  8. Solve this density problem and tell me if the object will sink or float.

D = mass/volume 25 grams/ 5ml = ______

  1. Convert 6. 89 ml to kl ______
  2. Draw for me an 8.5cm line.
  3. Who made the first model of an atom and what did it look like?
  4. What did the scientist JJ Thomson discover? ______
  5. Who said that the atom had a nucleus and positive particles? ______
  6. What did Neil Bohr say about the atom? ______
  7. Which mathematician discovered the neutron in the atom? ______
  8. Draw an atom and label the parts.
  9. Write the correct formula for sodium chloride. ______
  10. What does an oxidation number tell you? ______
  11. How would you pronounce this compound: MgCl ______
  12. What is an element? Give an example. ______
  13. What is a subscript? ______
  14. What does the Law of Conservation of Matter state? ______
  15. Define compound. ______
  16. Balance this equation: Fe + O2 ------ 2Fe2O3
  17. 2 becomes 1 Which chemical reaction is this? ______
  18. A compound made of only hydrogen and carbons is called ______.
  19. What is the difference between a mixture and a solution? ______
  20. What is an isotope? ______
  21. What charge does an atom have? ______
  22. What charge does the center of an atom have? ______
  23. Define force. ______
  24. ______is an opposing force.
  25. Force is measured in ______.
  26. What is the amount of force due to earth’s gravity? ______
  27. At what rate do all objects fall on earth? ______
  28. Which scientist is given credit for discovering that falling rate? ______
  29. State at least 2 of Newton’s Laws of Motion: ______
  30. How do you know you are moving? ______
  31. Fast moving water causes ______pressure. Slow moving water causes ______pressure.
  32. How does a dropper work? ______
  33. How do you know you have done work? ______
  34. How do machines help us? ______
  35. List the 6 simple machines. 1.______2.______3.______4.______5.______6.______
  36. Define compound machine. ______
  37. Draw the 3 types of levers.
  38. What is energy? ______
  39. What is the difference between potential and kinetic energy?
  40. List at least 4 forms of energy resources. ______
  41. What does the law of conservation of energy state? ______
  42. Calculate the kinetic energy of a car that has a mass of 3600kg and is moving at 60m/s2. What is the kinetic energy? Show your work.