Matter

Question 1

As temperature increases

Answer 1

Move further apart - expand

Move faster

Attractive forces become weaker

Question 2

As temperature decreases

Answer 2

Move slower

Move closer together

Attractive forces get stronger

Question 3

Solid - liquid

Answer 3

Heating

Question 4

Liquid - solid

Answer 4

Freezing

Question 5

Liquid - gas

Answer 5

Evaporation

Question 6

Gas - liquid

Answer 6

Condensation

Question 7

Manipulated variable

Answer 7

One thing to change - what were testing

Question 8

Controlled variable

Answer 8

Things that need to stay the same so it’s fair

Question 9

Responding variable

Answer 9

What I measure as a result of the experiment

Question 10

Tare your scale

Answer 10

Press a button to set the scale to zero - use it with a container

Question 11

Expansion

Answer 11

Particles move further away - liquid goes up

Question 12

Contraction

Answer 12

Particles move closer together - liquid goes down

Question 13

Melting/freezing point

Answer 13

0°c

Question 14

Boiling point

Answer 14

100°c

Question 15

Safety practices for measuring temperature/measurement tools

Answer 15

Wear gloves and heat protection

Ask an adult for help

Dont put on the edge of desk

Put away carefully and wait for it to cool down

Question 16

Density

Answer 16

Compare mass and volume (how many particles in space)

Question 17

Expansion 2

Answer 17

Volume increases because of heating

Question 18

Contraction 2

Answer 18

Volume decreases because of cooling

Question 19

Most materials____when heated

Answer 19

Expand

Question 20

Most materials____when cooled

Answer 20

Contract

Question 21

Water is different. Water____when it freezes

Answer 21

Expands

Question 22

This makes water____in solid form than in liquid form

Answer 22

Less dense

Question 23

And object that is less dense____

Answer 23

Floats

Question 24

And object that is more dense____

Answer 24

Sinks

Question 25

The____of a body of water freezes when the temperature of the water drops____the freezing point

Answer 25

Surface, below

Question 26

The frozen surface of a large body of water forms an____sheet of ice that____aquatic life

Answer 26

Insulating, protects

Question 27

Insulating

Answer 27

Protects from temperature

Question 28

Aquatic life survives in water because:

Answer 28

Ice forms on top insulating the water below - prevents freezing - fish swim in water below

Question 29

If solid water were denser,

Answer 29

It would sink ane crush the fish below - there will be no water for the fish to swim in

Question 30

Bridges

Answer 30

Expansion joints allow movement

Question 31

Sidewalks

Answer 31

Cracks between blocks

Question 32

Roads

Answer 32

Expansion joints or cracks/gaps

Question 33

Power lines

Answer 33

Wires dip down - not too tight

Question 34

Problems that could occur without these designs

Answer 34

Could break, crack, bend, or get bumps

Question 35

Hot day

Answer 35

Small gap

Question 36

Cold day

Answer 36

Big gap