Trinity conducted a science experiment using household products. She put a drop of a substance on a piece of litmus paper and it turned blue. What is the most probable substance that Trinity tested?
a. water
b. orange juice
c. baking soda
d. vinegar

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.