Lessson 1

Question 1

How are fossil fuels formed

Answer 1

By decomposed animal and plants found on the earths crust

Question 2

Whats a variable

Answer 2

Anything that effects the outcome

Question 3

What is a independent variable

Answer 3

It is indepedent becauae you change it

Question 4

What is a depedent variable

Answer 4

It is dependent because it changes when you change the temprature

Question 5

What is a control variable

Answer 5

Things that wont affect the outcome

Question 6

What is the average

Answer 6

The sum of values divided by the nuber of values

Question 7

What is mean

Answer 7

average value calculated by taking the sum of all values and dividing by the total number of values

Question 8

What is accuracy

Answer 8

Accurate means it is xlose to the data

Question 9

What dose pricise mena

Answer 9

Precise data gives you similar results after you repeat it

Question 10

What does uncertanity mean

Answer 10

If you look at a thermometer its hard to tell if its 21.5,22,22.5

Question 11

What does repeatabilty mean?

Answer 11

Repeat a mesaurement the data should be similar it is repetable

Question 12

What does reproducibilty mean

Answer 12

If other people do the same investagition they should get similar data

Question 13

What does random error mean

Answer 13

This can affect the spread or cause outliers

Question 14

What does systematic error mean

Answer 14

This can make your measurements less accurate