The key words to answer section B

Science Process Skills

• Observation

         " Write what will  happen  / what we see / feel / hear / taste / smell"
             
            Example : The plants will die.         

• Inference

          "Write the observation and give a reason"
      
           Example : The plants will die because there is no air.

• Aim / Purpose / Why is the experiment being done?

           To investigate the relationship between the WTC  and the   WTO

• Hypothesis / relationship between the variables

          As the WTC increase/decrease,
               the WTO increase/decrease.

• Information Gathered

         WTC      -  what to change
         WTO      - what to observe
         WTKS    - what to keep the same