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Flashcards in Sxcciene thing Deck (10):
1

Improve reliability/accuracy?

Repeat
Take average
Discard anomalies

2

Independent variable

one that you change

3

Dependent variable

the results

4

Control variable

ones need to keep the same to make it a fair test

5

Why is it important to keep control variables the same?

So only independent variabbles are allowed to affect the dependent variable and do not change the results

6

Why line graph

independent and dependent variables are continuos

7

Why bar chart

independent variable is categoric

8

Reproducible

different method used and proves same hypothesis

9

Graph looking

gradient, steep shallow horizontal, non-linear relationship

10

in rate of reaction what could cause anomalous results and how can they be reduced/prevented?

-loss of gas, use different apparatus(put Mg in immediately)
-plunger sticks, turn regularly
-changes in temp, water bath to monitor it
-Mg size strip, weigh to check mass