Chemistry: the science of matter

Question 1

organic

Answer 1

carbon based compounds

Question 2

inorganic

Answer 2

non-carbon based compounds

Question 3

physical

Answer 3

energy involved in chemical changes

Question 4

analytical

Answer 4

identification of components in materials which substances and how much

Question 5

biochemistry

Answer 5

the study of substances and processes in living things/systems

Question 6

theoretical

Answer 6

uses math and computers to study principles behind chemical behavior

Question 7

nuclear

Answer 7

study of properties and transformations involving an atom’s nucleus

Question 8

observing

Answer 8

gathering information

Question 9

hypothesizing

Answer 9

an explanation of natural phenomena

Question 10

a good hypothesis is:

Answer 10

1. testable
2. falsifiable (must be a way to disprove it)

Question 11

independent variable

Answer 11

what the scientist changes

Question 12

dependent variable

Answer 12

what is measured it changes in response to the independent variable

Question 13

controlled variables or constants

Answer 13

everything else in the experiment that is not changed

Question 14

experimental group

Answer 14

part of the experiment that is testing the independent variable

Question 15

control group

Answer 15

part of the experiment that is identical to the experimental group, but it does not test the independent variable

Question 16

independent is always on the ______ axis

Answer 16

x

Question 17

dependent is always on the ______ axis

Answer 17

y

Question 18

what is limited to the study of created matter and energy in the present?

Answer 18

the scope of science

Question 19

what does science rely on

Answer 19

assumptions

Question 20

this states that events in the universe have rational causes that we can learn about

Answer 20

law of cause and effect

Question 21

what is dangerous about a long-held assumption?

Answer 21

it can end up being treated as a fact
ex. evolution

Question 22

bias in science

Answer 22

humans tend to see and believe what they want to be true. this can lead to a biased scientist seeing evidence where none exists

Question 23

approximations in science

Answer 23

science can provide only approximate descriptions of how the world works

Question 24

what is matter?

Answer 24

anything that occupies space and has mass

Question 25

what is mass?

Answer 25

the quantity of matter that a body possesses

Question 26

what is weight?

Answer 26

the force of gravity on an object

Question 27

the mass of an object is constant; however, weight depends on the strength of __________. Therefore, an object will weigh less on the moon, but it has the same mass

Answer 27

gravity

Question 28

what is quantitative?

Answer 28

involves data, measurement, and quantities.

Question 29

what is qualitative?

Answer 29

non-numerical observations such as color, order, and sound

Question 30

length =

Answer 30

meter

Question 31

mass =

Answer 31

kilogram

Question 32

time =

Answer 32

second

Question 33

temperature =

Answer 33

kelvin

Question 34

what was developed in France and is based on units of 10?

Answer 34

metric system

Question 35

what does “The Great Mighty King Henry Died By Drinking Chocolate Milk Many Nights People Felt Angry” stand for?

Answer 35

Tera Giga Mega Kilo Hecto Deka Base Deci Centi Milli Micro Nano Pico Femto Atto

Question 36

formula for finding celsius

Answer 36

(5/9)(Tf)-32

Question 37

formula for finding fahrenheit

Answer 37

(9/5)(Tc)+32

Question 38

what is the coldest possible temperature? what happens to water?

Answer 38

absolute zero and the molecules cease vibrating

Question 39

formula to find celsius from kelvin

Answer 39

Tc=Tk-273.15

Question 40

what is precision

Answer 40

consistency or reproducibility of a measurement

Question 41

what is accuracy

Answer 41

how close a measurement is to the actual, exact value

Question 42

what is uncertainty

Answer 42

sometimes numbers, particularly in science, aren’t exact.