variables, sig figs, metric conversions

Question 1

how can you convert between smaller/larger numbers?

Answer 1

KHD-DCM

Question 2

rounding with sig figs:

Answer 2

look at the number after the place we round to. if it is above five, round up. if it is below five, leave alone

Question 3

adding/subtracting sig figs:

Answer 3

round to the fewest decimal places

Question 4

multiplying/dividing:

Answer 4

round to the fewest sig figs in the data

Question 5

rounding exceptions:

Answer 5

conversion factors (1cm/10mm); counted numbers (6 students); zero

Question 6

do the units change in the answer?

Answer 6

only the multiply and divide units change

Question 7

what is science?

Answer 7

a system of knowledge and the methods you use to find knowledge

Question 8

quantitative:

Answer 8

numerical

Question 9

qualitative

Answer 9

descriptive

Question 10

technology

Answer 10

the use of knowledge to solve practical problems

Question 11

science is divided into two types

Answer 11

natural/socialt

Question 12

three branches of science

Answer 12

physical, earth/space, life

Question 13

scientific method?

Answer 13

a systematic procedure for collecting/analyzing data

Question 14

scientific theory?

Answer 14

well-tested explanation for a set of observation or experimental results

Question 15

hypothesis

Answer 15

proposed answer to a question

Question 16

independent variable

Answer 16

the variable that changes in an experiment

Question 17

dependent variable

Answer 17

the variable that you meausre in an experiment

Question 18

controlled variable

Answer 18

the variable that stays the same

Question 19

kinetic theory

Answer 19

all particles of matter are in constant motion

Question 20

model

Answer 20

a representation of a real-life problem/object