What property of water was best demonstrated in the Bond film showing that water

Question

What property of water was best demonstrated in the Bond film showing that water interacts with the thus allows the poison to move down the string A) Adhesion B) Cohesion C) Surface tension D) Specific Heat E) Heat of vaporization Which property of water explains why a wet thermometer cools quicker than a dry thermometer? A) Adhesion B) Cohesion C) Surface tension D) Specific Heat E) Heat of vaporization Use the following and the graph below to answer question You conduct a study change in body temperature 2 minutes after people eat mild or hot salsa. Your results after testing indicated in the graph below. For this experiment, what was the dependent variable? A) Average maximum change in body temperature B) Salsa type C) Time (minutes) D) Amount of Salsa E) People In comparing Mild Salsa vs Hot Salsa the results inform us that A) The two groups under comparison are significantly different B) The two groups under comparison are not significantly different. C) The two groups under study included people that are the same size and gender. D) There must be an error in the experimental procedure. E) None of the above. Construct a hypothesis and a prediction for the experiment described in questions 6 and 7. a. (2) Hypothesis b. (2) Prediction

Explanation / Answer

Answer:

4.

Correct option: C) Surface tension

Explanation: Water has high surface tension due to strong cohessive forces between water molecules. It can be best observed as water forms drops on non-absorbant surfaces. In this case surface tension property of water is best demonstrated as water carries the poison to move down the string.

5.

Correct option: D) Specific heat

Explanation: Water has high specific heat capacity. This allows water to absorb heat energy allowing its immediate environment to cool down. This is why wet thermometer cools quicker than a dry thermometer.

6.

Correct option: A) Average maximum change in body temperature

Explanation: Average maximum change in body temperature is the dependent variable as it is being measured in the experiment and is affected or changed during the course of experiment.

7.

Correct option: B) The two groups under comparison are not significantly different

Explanation: As on comparing the average maximum change in body temperature in both the cases of mild and hot salsa from the graph, it is observed that the difference in temperature range is not much.

Hypothesis:

There is a steep rise in body temperature after consuming the salsa. There is approximately around 0.5 degrees F of change on consuming hot salsa and around 0.4 degrees F change on having mild salsa as compared to the normal range of body temperature (no salsa) in person who had no salsa.

Prediction:

Consuming hot food elevates the body temperature. This average maximum change in body temperature depends on the temperature of the food being consumed. Also consuming food starts the catabolic process of digestion that releases energy and raises the body temperature. Other life processes in body also release energy. So in people who have not consumed salsa there is also a change in body temperature.

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