Gen Sci Unit 1 Review

You can tell a solution from a suspension by...

• waiting to see if it separates into different parts (if it does, it's a suspension)

• waiting to see if it separates into different parts (if it does, it's a solution)

• mixing them together to see if a sign of a chemical change takes place

• by graphing how their temperatures change over time

Bubbling could be a physical change if the molecules...

• are boiling (undergoing a liquid to gas phase change)

• are reacting, recombining, and creating a gas

Bubbling could be a chemical change if the molecules...

• are boiling (undergoing a liquid to gas phase change)

• are reacting, recombining, and creating a gas

Which parts of the graph show water going through a phase change?

• Between A & B, Between C & D, and Between D & E

• Between B & C and Between D & E

• Just between B & C

• Just between C & D

Which parts of the graph show the substance in just one state of matter (NOT going through a phase change)?

• Between A & B, Between C & D, and Between D & E

• Between B & C and Between D & E

• Just between B & C

• Just between C & D

Between what two letters is the substance completely solid?

• Between D & E

• Between E & F

• Between A & B

• Between B & C

• Between C & D

Between what two letters is the substance melting?

• Between D & E

• Between E & F

• Between A & B

• Between B & C

• Between C & D

Between what two letters is the substance completely liquid?

• Between D & E

• Between E & F

• Between A & B

• Between B & C

• Between C & D

Between what two letters is the substance boiling/vaporizing?

• Between E & F

• Between D & E

• Between A & B

• Between B & C

• Between C & D

Between what two letters is the substance completely a gas?

• Between E & F

• Between D & E

• Between A & B

• Between B & C

• Between C & D