Obtain a Styrofoam cup of heated water from your teacher. Be careful to hold the cup so that it doesn't tip. Both the thermometer (and the dissolved oxygen probe) will make the Styrofoam cup top-heavy. Take the temperature of the water. Record this temperature on your spreadsheet for the warm water.
After connecting the dissolved oxygen probe to the computer, measure for thirty seconds the amount of dissolved oxygen in the warm water with the DataLogger software. Refer to
Technical Hints to see how to use the DataLogger software to measure dissolved oxygen.
Transfer the final dissolved oxygen measurement for the warm water to your spreadsheet. Refer to
Technical Hints to see how to transfer data to a spreadsheet.
Obtain a Styrofoam cup of hotter water from your teacher. Take the temperature of the water. Record the temperature on your spreadsheet for the hotter water. Be careful to hold the cup so that it doesn't tip. After connecting the dissolved oxygen probe to the computer, measure for thirty seconds the amount of dissolved oxygen in the hotter water with the DataLogger software. Refer to
Technical Hints to see how to use the DataLogger software to measure dissolved oxygen.
Transfer the final dissolved oxygen measurement for the warm water to your spreadsheet. Refer to
Technical Hints to see how to transfer data to a spreadsheet.
Complete the questions found in "Analysis".
