Science solids, liquids, gases, plasmas

Question 1

solid

Answer 1

no definite shape or volume

the particles do not move fast enough to overcome the strong attraction so they vibrate in place

Question 2

liquid

Answer 2

no definite shape but definite volume

the particles move independently and slide past each other

Question 3

gas

Answer 3

no definite shape or volume

particles in constant motion

Question 4

plasma

Answer 4

no definite shape or volume

they move around freely really fast

Question 5

Which state of matter are particles most attracted to each other?

Answer 5

solid

Question 6

the four states of matter from lowest energy to highest.

Answer 6

solid, liquid, gas, plasma

Question 7

Freezing

Answer 7

• liquid to solid

- exothermic

Question 8

melting

Answer 8

• solid to liquid

- endothermic

Question 9

vaporization

Answer 9

• liquid to gas

- endothermic

Question 10

condensation

Answer 10

• gas to liquid

- exothermic

Question 11

sublimation

Answer 11

• solid to gas

- endothermic

Question 12

What are two natural occurring plasmas?

Answer 12

lightning and fire

Question 13

which state of matter is most plentiful?

Answer 13

plasma

Question 14

viscosity

Answer 14

a liquid’s resistance to flow

Question 15

Boyles law

Answer 15

when pressure increases, volume decreases

Question 16

Charles law

Answer 16

increase in temp. increase in volume

Question 17

amorphous solid

Answer 17

they are in a particular spot with no particular pattern; ex: glass, plastic

Question 18

physical change

Answer 18

changes affecting the form of a chemical substance, but not its chemical composition.

Question 19

chemical change

Answer 19

any change that results in the formation of new chemical substances

Question 20

change of state

Answer 20

changing the physical composition of the four states of matter

Question 21

crystalline solid

Answer 21

they are arranged in a repeating pattern of rows;ex: snowflakes, diamonds

Question 22

condensation
sublimation
evaporation
vaporization

Answer 22

going from a gas to a liquid
going from a solid to a gas
liquid changing into gas
liquid to a gas

Question 23

endothermic

Answer 23

when energy or heat is needed

Question 24

exothermic

Answer 24

when energy of heat exits or leaves

Question 25

Is a change of state a physical or chemical change?

Answer 25

physical

Question 26

which has viscos; pancake syrup or milk

Answer 26

pancake syrup

Question 27

Predict what would would happen to the volume of chips when a closed bag of chips purchased in Westlake is taken to Big Bear. Which gas law is this an example of?

Answer 27

It will expand and its volume will increase. This follows Boyle’s law stating a decrease pressure means increase in volume. As your going from Westlake to Big bear you are going to higher altitude with less pressure.

Question 28

Describe the changes that occur inside a helium balloon as it rises from sea level.

Answer 28

It will eventually pop due to less pressure and an increase in volume. Which is also what Boyle’s law states

Question 29

Do chemical changes change the identity of a substance

Answer 29

yes