1) When a solid changes into a liquid, it is called ...... a.) vaporizationb.) meltingc.) evaporation

2) When a solid changes directly into a gas, it is called ...... a.) sublimationb.) evaporation

3) When a gas changes into a liquid, it is called ...... a.) solidificationb.) meltingc.) condensation4) Matter in a solid state has . . . . . volume and . . . . . . shape. a.) no definite, no definiteb.) a definite, a definitec.) a definite_no definite

5) How many states of matter are there? (Scientists call plasmas a state of matter too. You do not have to count plasma as a state of matter for this question). a.) two b.) threec.) five6) The states of matter are the following: solids, liquids, gases, plastics. a.) True b.) False

7) States are also known as ? a.) phasesb.) phrasesc.) frases8) Which phase of matter does not take the shape of the container it is in? a.) solidb.)liquid

9) True or false? There is very little space between the molecules of a liquid. There is a lot of space between the molecules of a gas.a.) Trueb.) False10) When solids reach their melting point they become ...... a.) liquidsb.) gases

11) What happens when a gas reaches condensation point?a.) It becomes a solid. b.) It becomes a liquid. 12) What is evaporation?a.) when liquids turn into vaporb.) when solids turn into vapor

13) What state / phase can fit into any container of any size and any shape? a.) gasb.) solidc.) liquid and solid

14) Gas and vapor means the same. a.) Trueb.) False

15) Which state can hold its own shape? a.) a solidb.) a liquidc. ) a gas16) Which state of matter resists very strongly if you try to change its shape? a.) gasb.) solidc.) liquid

17) The molecules in which state of matter spread out until they fill the container no matter how big this container is? a.) liquidb.) gasc.) solid

18) When a liquid changes into a solid, it is called ...... a.) meltingb.) freezingc.) condensation

19) Solidification is when a gas changes into a solid. a.) Trueb.) False20) Matter in a ...... has a ...... volume and ...... shape.a.) gaseous state ___ no definite ___ no definiteb.) liquid state _____ no definite ___ definitec.) solid state _____ no definite ___ no definite

21) Fill in the correct missing words: Matter in a ..... has ...... volume and ...... shape. a.) solid state ___ no definite ___ no definiteb.) gaseous state ___ definite ___ no definitec.) liquid state ___ a definite ___ no definite

22) When water freezes or when water becomes a vapor is it still the substance: water? a.) yesb.) no

23) True or false? Liquids expand in all directions to take the shape of the container it is in. a.) Falseb.) True

24) Pick the true statement below: a.) Gases are harder to compress than solids b.) Liquids are harder to compress than gasesc.) Liquids are harder to compress than solids

25) Compression forces atoms closer together. Compression forces something into a smaller space. a.) Trueb.) False

26) True or false? When solids reach their melting points, solids become liquids. a.) Trueb.) False

27) Which phases have melting points? a.) liquidsb.) gasesc.) solids

28) Pick the correct statement:a.) Solids become gases at their melting points b.) Solids become liquids at their melting points

29) At what point does a liquid become a solid? a.) at boiling pointb.) at freezing point c.) at condensation point30) Evaporation is when a solid turns into a liquid.a.) Trueb.) False

31) Which phase of matter takes the shape of the container it is in? a.) solidb.) gas32) Pick the true statement: a.) Liquids are easier to compress than solidsb.) Solids are easier to compress than liquidsc.) Solids are easier to compress than gases

33) When gases reach their melting point they become ...... a.) liquidsb.) solidsc.) none of the above is correct

34) Pick the true statement: a.) Solids have a melting pointb.) Gases have a boiling pointc.) Solids have a condensation point

35) Pick the true statement below: a.) A gas becomes a liquid at condensation point.b.) A gas becomes a solid at condensation point.c.) A solid becomes a gas at condensation point.36) Pick the right statement below:a.) In gases the atoms are spread out the most - atoms are far apart.b.) In liquids the atoms are packed closer together.c)In solids the atoms are packed the closest together.d.) All the above statements are righte.) All the above statements are wrong

37) Which states of matter are not able to hold their own shapes? a.) only liquidsb.) only gasesc.) liquids and gases38) What state of matter is the easiest to compress? a.) liquidsb.) solidsc.) gases

39) True or false? Compression spread atoms out. a.) Trueb.) False40) Pick the true statement: a.) Liquids can freezeb.) Gases can freezec.) Solids can freeze