Paper 6 - alt to prac Flashcards
1
Q
What is a control
A
to show what would happen if no ______ were present, to prove that _____ is causing a reaction
2
Q
how to get more accurate result of temperature controlled investigation
A
- smaller intervals of temp
- narrower range of temperatures around ____
3
Q
Why is it important to take measurements from the same place
A
to allow comparison/calculate the difference accurately
4
Q
Why is it better to collect several results
A
to identify anomalous results and calculate average
5
Q
How hot does solution need to be during test of Benedict’s solution
A
80 degrees
6
Q
What 4 things are needed for graph drawing
A
- axis labelled WITH units (IV on x axis, DV on the y axis)
- even scale (takes up more than half of space provided)
- suitable line
- correct plots
7
Q
4
things drawing must have
A
- clear outline
- NO shading
- drawing must be larger than half the space provided
- details
8
Q
Suggest why all the ____ were placed into a water-bath for ___ minutes before….
A
Give enough time to reach temp of waterbath/equilibriate
9
Q
A
