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Question 1

What is a qualitative observation?

Answer 1

Those not involving numbers

Question 2

A universally accepted explanation of the problem

Answer 2

Theory

Question 3

States what general behavior is observed to occur naturally

Answer 3

Law

Question 4

State of matter with a definite shape and volume, particles are packed tightly together and only vibrate gently around fixed positions

Answer 4

Solids

Question 5

State of matter with no definite shape (takes shape of container) but a definite volume. Particles are free to move

Answer 5

Liquid

Question 6

Have neither a definite shape nor a definite volume. Particles spread apart and fill all of the space in the container available to them

Answer 6

Gases

Question 7

Solid to liquid

Answer 7

Melting

Question 8

Liquid to gas

Answer 8

Boiling or evaporation

Question 9

Gas to liquid

Answer 9

Condensing

Question 10

Solid to gas

Answer 10

Sublimation

Question 11

Gas to solid

Answer 11

Reverse sublimation or deposition

Question 12

Liquid to solid

Answer 12

Freezing, solidifying, or crystallizing

Question 13

When a substance is heated it ________ energy

Answer 13

Gains

Question 14

Change where the atoms of a substance are rearranged to form new substances

Answer 14

Chemical change

Question 15

Formation of a solid during a chemical change that was not there before

Answer 15

Precipitate

Question 16

A substance that cannot be broken down into other substances by chemical means

Answer 16

Element

Question 17

Formed when elements bond together, always have a fixed composition

Answer 17

Compounds

Question 18

Has varying compositions, is made up of a number of pure substances

Answer 18

Mixture

Question 19

What are pure substances?

Answer 19

Elements or compounds

Question 20

Mixture uniform in composition

Answer 20

Homogenous

Question 21

Mixture that has separate distinct regions

Answer 21

Heterogenous

Question 22

What is the equation to convert Celsius to Kelvin?

Answer 22

T in K= T in C + 273

Question 23

What is the equation to turn Kelvin to Celsius?

Answer 23

T in C= T in K -273

Question 24

The ratio of the mass of an object to its volume

Answer 24

Density

Question 25

Density=

Answer 25

Mass/ volume

Question 26

Mass=

Answer 26

Density x volume

Question 27

What is the equation for percentage error?

Answer 27

Absolute value of

(actual value)-(calculated value)/(actual value) X 100

Question 28

What is the base unit for mass?

Answer 28

Kilogram

Question 29

What is the base unit for length?

Answer 29

Meter

Question 30

What is the base unit for time?

Answer 30

Second

Question 31

What is the base unit for amount of substance?

Answer 31

Mole

Question 32

What is the base unit for temperature?

Answer 32

Kelvin

Question 33

What is the symbol for kilogram?

Answer 33

Kg

Question 34

What is the symbol for meter?

Answer 34

m

Question 35

What is the symbol for second?

Answer 35

s

Question 36

What is the symbol for mole?

Answer 36

Mol

Question 37

What is the symbol for kelvin?

Answer 37

K

Question 38

Giga

Answer 38

10^9

Question 39

Mega

Answer 39

10^6

Question 40

Kilo

Answer 40

10^3

Question 41

Deci

Answer 41

10^-1

Question 42

Centi

Answer 42

10^-2

Question 43

Milli

Answer 43

10^-3

Question 44

Micro

Answer 44

10^-6

Question 45

Nano

Answer 45

10^-9

Question 46

Pico

Answer 46

10^-12

Question 47

What is a quantitative observation?

Answer 47

Those involving numbers or measurement