Natalie prepared four set-ups, A, B, C and D, for her experiment. Each set-up consisted of identical containers filled with water. The table below shows the different conditions for each set-up at the start of the experiment.Natalie wanted to investigate how the presence of wind would affect the rate of evaporation of water. Which of the following two set-ups should she use to conduct a fair test?Read LessA and DA and BB and CC and D

Pedro is planning to model how changes in weather affect evaporation from lakes. For his second experiment, he wants to test how winds affect the evaporation rate. He places one beaker with 300 mL of water in an area away from any fans, and he places another beaker with 300 mL of water near a small fan.Which of the following variables does Pedro need to control during his experiment?A.Movement of air onlyB.Temperature and volume of waterC.Movement of air and evaporation rateD.Temperature onlySUBMITarrow_backPREVIOUS

Describe how experiment B and experiment C acted as controls for the investigation. [2 marks] Experiment B Experiment C

Pick out the correct options from the given statement1. Evaporation increases with an increase of surface area2. Evaporation increases with an increase of temperature3. Evaporation increases with an increase of humidity4. Evaporation increases with a decrease in wind speedStatement 1 and 2 are trueStatement 1 and 2 are falseStatement 3 and 4 are trueStatement 3 is true and 4 is false

Describe how experiment B and experiment C acted as controls for the investigation. [2 marks] Experiment B Experiment

Figure 1 shows the different apparatus the two students used.(a)     Choose two advantages of using student A’s apparatus.*2 pointsStudent A’s apparatus made sure the test was fair.Student B’s apparatus only measured categorical variables.Student A’s measurements had a higher resolution.Student B was more likely to misread the temperature.