1. 111 Science Quiz Introduction to Matter

2.  1. Which of the following is true about matter?  a) It is a solid and takes up space  b) It has mass and takes up space  c) It has mass and is usually liquid  d) It is always a substance Questions

3.  2. The physical property that makes metal pots good for cooking is:  a) flexibility  b) electical conductivity  c) flammibility  d) heat conductivity Questions

4.  3. Which is not true about a pool of water and a piece of ice?  a) They have the same composition  b) They are in different states of matter  c) They have different chemical properties  d) They have different physical properties Questions

5.  4. What is a substance? A substance is a single kind of matter that is pure and has a specific composition  5. What two properties does every kind of matter have? Chemical and Physical  6. If H 2 O changes from liquid to solid, is this a physical property or a chemical property? Physical  7. Define what a chemical property is of a substance. Ability to change to a different substance e.g. burning, rusting or tarnishing. Questions

6.  8. A molecule is the smallest part of a:  a) an element  b) a compound  c) a substance  d) an atom Questions

7.  9. A mixture of iron and sulfur can be separated by:  a) Magnetic attraction  b) Distillation  c) Evaporation  d) filtration Questions

8.  10.Compounds are formed as a result of:  a) a physical combination of elements  b) a chemical combination of elements  c) distillation  d) filtration Questions

9.  11. A balloon filled with air does not rise as high as a balloon filled with helium. What does this tell you about the density of helium?  a) Helium is more dense than air  b) Helium is less dense than air  c) The two gases have the same density  d) When heated the helium becomes more dense. Questions

10.  12. Given the formula for calculating density, re-arrange and write down the formula to find the mass of an object. Density = Mass / Volume – rearrange Mass = Density x Volume ( remember the triangle !! )  13. What is the unit of Weight? Newton (N)  14. What is the formula we used to find weight of Arnie? Weight = Mass x Gravity Questions

11.  15. Given that the gravity on Jupiter is about 25, what would the mass of Arnie the Alien be, if his weight was 150 Newtons? Weight = Mass x Gravity … rearrange so : Mass = Weight / Gravity = 150 N / 25 = 6 kg Last Question