Lab Safety & Data

Question 1

What is some lab saftey

Answer 1

Wear Goggles
Hair is pushed back
Protective gloves
Proper clothes
Closed in shoes

Question 2

What are some saftey features of a lab?

Answer 2

Exits
Emergency shut off buttons
Fire blanket
Fire extinguisher
Eye wash station
Broken glass

Question 3

What is data?

Answer 3

Data refers to ‘known facts, or pieces of information collected together for reference or analysis. There are 4 types of data

Question 4

what is Quantitative Data?

Answer 4

Quantitative –quantity (amount or number) of something. Eg. Height (cm), shoe size (mins), temperature of a day (∙C)

Question 5

What is Qualitative Data?

Answer 5

Qualitative –quality (standard) of something. Eg. colours, names of things (rock names, animals, plants), types of words in a sentence.

Question 6

What is Primary Data?

Answer 6

Primary Data
- Data that you or your group collect using your own experiments

Question 7

What is Secondary Data?

Answer 7

Secondary Data
- Data that comes form the work of other people.
Eg information you find on the internet, textbooks, etc

Question 8

Mistakes

Answer 8

Can be avoided

Question 9

Errors

Answer 9

Are unavoidable

Question 10

Parallax errors

Answer 10

when the scale is not viewed at 90 degrees

Question 11

Reading errors

Answer 11

when the measurement falls between 2 markings on a scale and you have to estimate the answer.

Question 12

Instrument errors

Answer 12

if the instrument you are using does not measure correctly

Question 13

Zero errors

Answer 13

When scales don’t read zero before you start, making any measurement you take after that inaccurate.

Question 14

Variables

Answer 14

Variables are factors you need to control when designing and conducting an experiment.

Question 15

Independant Variable

Answer 15

Variable you change

Question 16

Dependant variable

Answer 16

The variable you MEASURE for the experiment.

Question 17

Controlled Variables

Answer 17

Kept the same to ensre it is a FAIR TEST