Required Practicals

• What is the purpose of the required practical sampling organism?

  To measure the distribution of daisies
• How are the samples collected in the practical sampling of daisies?

  Students pick daisies from a bag
• What should students do after picking daisies from the bag?

  Record the number of daisies picked
• What is the purpose of placing a quadrat on the ground?

  To record the number of daisies in a sample area
• How many samples should be taken in the practical?

  10 samples
• What equation is used after counting daisies in the quadrat?

  To calculate the number of daisies counted
• What factor of distribution is measured in the practical?

  Light intensity
• How is light intensity measured during the practical?

  Using a light meter at each point
• What is the first step in the reaction time practical?

  Person 1 sits upright on a stool
• What does person 2 do with the ruler in the reaction time practical?

  Holds it vertically between person 1's fingers
• What should person 1 do when the ruler is dropped?

  Catch it with their thumb and finger
• What is recorded after person 1 catches the ruler?

  The measurement on the ruler
• How is the mean reaction time calculated?

  By repeating the test several times
• What are the independent and dependent variables in the reaction time practical?

  Independent: person tested; Dependent: reaction time
• What are the control variables in the reaction time practical?

  Conditions of the room and starting distance
• What should be done after person 1's reaction time is measured?

  They swap roles to test each other