1. Reviewing the Worksheet Get out your “Manipulated vs. Responding Variables” worksheet We will go over this worksheet as a class

2. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 1 - 7 on hypotheses are worth 1 mark each for properly identifying Manipulated or Responding variable Question 1 – Manipulated Variable Question 2 – Responding Variable Question 3 – Manipulated Variable Question 4 – Responding Variable Question 5 – Manipulated Variable Question 6 – Responding Variable Question 7 – Manipulated Variable Total is out of 7 marks… please enter your mark in space provided in the margin

3. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 8 -10 are each worth ten marks: 1 mark each, 5 marks total for identifying 5 different controls 1 mark for properly identifying the Manipulated Variable 1 mark for properly identifying the Responding variable 3 marks for a proper hypothesis… 1 mark for using “IF” “THAN” statements 1 mark for the question being in testable format 1 mark for quantifying the “IF” “THAN” statements Lets take a look at the questions

4. Reviewing “Manipulated vs. Responding Variable ” Worksheet Question 8 1 mark for properly identifying the Manipulated Variable The manipulated variable is THE AMOUNT OF DAY LIGHT each plant is exposed to 1 mark for properly identifying the Responding Variable The responding variable is HOW TALL THE PLANTS GROW

5. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 8 Continued… 1 mark for each control… the controls are: 1 - type of plant used in the experiment 2 - the amount of water each plants receives 3 - the temperature each plant is grown in 4 - the type of soil each plant is grown in 5 - the amount of fertilizer each plant is given 6 - the number of bugs each plant is exposed to

6. Reviewing “Manipulated vs. Responding Variable ” Worksheet Question 8 Continued… 3 marks for a proper Hypothesis “IF” the plants are exposed to TWICE as much daylight, “THAN” the plants will grow TWICE as tall One mark for using “IF” “THAN” statements One mark for the question being in a testable format One mark for quantifying the statements using “TWICE”

7. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 9 Continued… 1 mark for properly identifying the Manipulated Variable The manipulated variable is THE TYPE OF OIL USED in each car 1 mark for properly identifying the Responding Variable The responding variable is HOW LONG THE ENGINE LASTS

8. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 9 Continued… 1 mark for each control… the controls are: 1 – Type of car engine used 2 – The temperature of the surroundings 3 – Starting temperature of the engines 4 – The amount of oil put into each car 5 – The RPM’s the engine is run at

9. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 9 Continued… 3 marks for a proper Hypothesis “IF” the new advanced synthetic oil is used in the cars engine instead of the generic oil, “THEN” the car’s engine will run 30% longer One mark for using “IF” “THEN” statements One mark for the question being in a testable format One mark for quantifying the statements using “TWICE”

10. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 10 1 mark for properly identifying the Manipulated Variable The manipulated variable is THE TYPE OF TIRE USED on the track 1 mark for properly identifying the Responding Variable The responding variable is THE LAP SPEED OF THE CAR

11. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 10 Continued… 1 mark for each control… the controls are: 1 – The track the tires are tested on 2 – The driver of the test car 3 – The temperature of the pavement 4 – The type of race car used 5 – Wind speed around the track

12. Reviewing “Manipulated vs. Responding Variable ” Worksheet Questions 10 Continued… 3 marks for a proper Hypothesis “IF” the new softer rubber compound tire is put on the race car, “THAN” the car will run lap times 10% quicker One mark for using “IF” “THEN” statements One mark for the question being in a testable format One mark for quantifying the statements using “TWICE”

13. Reviewing “Manipulated vs. Responding Variable ” Worksheet Give your self a mark out of 37 and a % score The teacher will walk around and have a look to see how you did Remember, if you are not happy with the mark that you ended up with, come see the teacher after school or at lunch to get further help!!!