test 1

Question 1

systemitized language

Answer 1

science

Question 2

study of matter

Answer 2

chemistry

Question 3

atoms molecules or ions

Answer 3

particles

Question 4

anthing that has mass and occupies space

NOT LIGHT

Answer 4

matter

Question 5

all compounds are _____

Answer 5

chemicals

Question 6

scientific method

Answer 6

O H E S S

observation, hypothesis, experiment, scientific law, scientific theory

Question 7

scientific observation should be _______

Answer 7

reproducible (explain why)

Question 8

A tentative explanation of observation

Can be tested by experiments

Answer 8

hypothesis

Question 9

Highly controlled observation

Answer 9

experiment

Question 10

a concise statement that summarizes past observations and predicts future ones

Answer 10

sceintific law

Question 11

Well established hypothesis

It provides a broader & deeper explanation for observation and laws

Answer 11

scientific theory

Question 12

how close the measurement is to the true value

Answer 12

accuracy

Question 13

How well a number independent measurements agree with one another

Answer 13

precision

Question 14

error formula

Answer 14

Error = |true value - measured value|

Question 15

SI unit of area

Answer 15

m^2

Question 16

SI unit of length

Answer 16

m

Question 17

SI unit of volume

Answer 17

m^3

Question 18

SI unit of desnity

Answer 18

Kg / m^3

Question 19

SI unit of speed

Answer 19

m/s

Question 20

formula for speed

Answer 20

distance/time

Question 21

si unit of acceleration

Answer 21

m/s^2

Question 22

SI unit of force

Answer 22

N

Question 23

SI unit of pressure

Answer 23

Pascal

Question 24

SI unit of energy

Answer 24

Joules

Question 25

Mr Cubed

Answer 25

1 L = 1000cm^3 = 1000mL

Question 26

smallest fundamental particle of an element that has the properties of that element

Answer 26

atom

Question 27

First atomic theory

Answer 27

dalton’s atomic theory