Chemistry - Recording Data, Hazard Symbols, Bunsen Burner and Lab Equipment

dependent variable

changes in response to the independent variable

independent variable

the variable that is changed

control variable

variable that is kept the same

what do you need to include in an experiment plan?

idea, question, data, observations, variables

how to accurately measure length

align the object with the 0 mark, make sure the measuring tool is straight

state the best way to record data in an experiment

in a table with clearly labelled headings and units

how do you calculate the mean

at the numbers together and divide by the amount of numbers

what is the line of bet fit

a line drawn through the points on a scatter plot to estimate the best line through the data and average

what should you include in a conclusion

what you have found out and why you think it has happened

what is a set of measurements

'the range' the difference between largest and smallest reading

anomoly

data that does not fit the pattern

is a wide or narrow range better and why

wide because you can have more different and interesting results

why is it important to carry out repeats

to ensure your results and correct and you have no anomolys

bunsen burner

beaker

measuring cyclinder

thermometer

boiling tube

evaporating basin

tripod

funnel

clamp stand

conical flask

gauze

heat proof mat