Pour the water from part B into one of the large containers. Pour the vinegar into the other large container. Observe the two combinations. Pick up each container one at a time and place your palm on the bottom to see whether you can feel a difference in temperature. Record what you see and feel.

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i