Required Practical Tips

Organise these options into the right variables

Groups:

(a) Independent

,

(b) Dependent

,

(c) Control

• Adjusting the angle of the ramp

• Keeping the same temperature

• Changing the distance of the light

• Altering the pH level of the solution

• Modifying the duration of exposure to light

• Recording the time taken for the reaction to occur

• Varying the concentration of the reactants

• Keeping the room lighting constant

• Observing the color change in the solution

• Same number of marble chips

• Counting the number of bubbles produced

• The person doing the experiment

• Using the same stopwatch

• Using the same measuring equipment

• Measuring the volume of gas produced

• Changing the type of substrate

Sort these command words!

• Give similarities and differences

• Suggest

• Say why something happens

• Compare

• Compare and give a final judgement

• Describe

• Give details about a process or graph

• Evaluate

• Apply knowledge to an unfamiliar example

• Explain

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

Funnel

Tripod

Beaker

Measuring Cylinder

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