Vocabulary

Question 1

precise/precision

Answer 1

a precise measurement will be the result of using the correct piece of equipment with appropriate resolution or smallest division (e.g. mm not cm)
very little spread about the mean value

Question 2

valid

Answer 2

a fair test with variables that you can control so that they do not change your experiment

Question 3

accurate

Answer 3

reliable and precise measurements can produce results very close to the value
if close to the true value
you can only hope it is accurate
you repeat (reliability), make it a fair test, calculate an average

Question 4

fair test

Answer 4

only the independent variable has been allowed to affect the dependent variable

Question 5

continuos variable

Answer 5

values (quantity) that can be given a magnitude (size) either by counting or by measurement
CHECK

Question 6

control variable

Answer 6

the variable that you keep the same

Question 7

independent variable

Answer 7

the variable that you measure (x-axis)

Question 8

dependent variable

Answer 8

the variable that you measure as a result of changing the independent variable (y-axis)