what is the difference between the original and modified test ?

Question

The original experiment method (insert here)
1. Use one of the thermometers to measure the temperature of the air (room temperature)
2. Put the beaker in the ice-cream container as shown on the next page. Add 200mL of hot water to the beaker- being careful not to burn yourself.
3. Pour 1500mL of cold water into the ice-cream container.
4. Place the thermometer in the beaker and the other in the ice-cream container. Start the stopwatch and measure the temperature inside and outside the beaker.
5. Measure the inside and outside temperatures every minute. Using the thermometers to stir the water gently. (Don’t take the thermometers out of the water.)
6. Plot both sets of results on a graph of temperature (vertical axis) versus time (horizontal axis). Draw a smooth curve for each set of points. (The curve doesn't have to go through each point- as long as it shows the general trend of the results.)

Re-write to test for your change
1. Use one of the thermometers to measure the temperature of the air (room temperature)
2. Put the beaker in the ice-cream container as shown on the next page. Add 200mL of cold water to the beaker.
3. Pour 1500mL of hot water into the ice-cream container- being careful not to burn yourself.
4. Place the thermometer in the beaker and the other in the ice-cream container and put a lid/cover over the containers to make it a closed system. Start the stopwatch and measure the temperature inside and outside the beaker.
5. Measure the inside (cold water) and outside (hot water) temperatures every minute. Using the thermometers to stir the water gently. And then close the lid back up. (Don’t take the thermometers out of the water.)
6. Plot both sets of results on a graph of temperature (vertical axis) versus time (horizontal axis). Draw a smooth curve for each set of points. (The curve doesn't have to go through each point- as long as it shows the general trend of the results.)

Answer 1

The original experiment involved adding hot water to the beaker and cold water to the ice-cream container, while the modified test involves adding cold water to the beaker and hot water to the ice-cream container. Additionally, in the modified test, a lid/cover is placed over the containers to create a closed system. This change in the method allows for testing how the temperature inside the beaker and outside the beaker (in the ice-cream container) affect each other in a closed environment. The rest of the steps remain the same, including measuring temperatures every minute and plotting the results on a graph.