Required Practical Tips

Organise these options into the right variables

Groups:

(a) Independent

,

(b) Dependent

,

(c) Control

• Measuring the volume of gas produced

• Counting the number of bubbles produced

• The person doing the experiment

• Using the same stopwatch

• Observing the color change in the solution

• Varying the concentration of the reactants

• Adjusting the angle of the ramp

• Changing the distance of the light

• Altering the pH level of the solution

• Recording the time taken for the reaction to occur

• Keeping the room lighting constant

• Using the same measuring equipment

• Modifying the duration of exposure to light

• Same number of marble chips

• Keeping the same temperature

• Changing the type of substrate

Sort these command words!

• Give similarities and differences

• Compare

• Apply knowledge to an unfamiliar example

• Explain

• Compare and give a final judgement

• Describe

• Give details about a process or graph

• Suggest

• Say why something happens

• Evaluate

The one we measure is the ​ (a)   ​ , the one we change is the ​ (b)   , the one we keep the same is the ​ (c)  

• dependent variable
• independent variable
• control variable

Volume is measured in ​ (a)  

• ml
• mm
• cm
• cm2

Label the equipment!

a

c

d

b

Tripod

Beaker

Measuring Cylinder

Funnel

Plot the following points. (x,y)

(0,0)

(3,2)

(6,4)

(8,6)

Plot the following points. (x,y)

(0,0)

(2,6)

(5,7)

(8,7)

Click the control variable

Click the dependent variable

Click the independent variable