Select the paragraph that BEST explains the process of changing a liquid into a solid. Which of the following sentences from the article gives an example of matter that has a set size but no set shapo? (A) For example, a book looks the same even after someone moves it to a new place. (B) For example, mik changes shape when a person pours it from a carton into a glass, but the amount of milk stays the samo. (C) The air and the helium used to fill balloons are examples of gases. (D) It can expand to fill a large container or it can be squeezed into a smaller container.

## Step 1<br />The problem asks us to identify the sentence that best explains the process of changing a liquid into a solid. This process is known as freezing.<br /><br />## Step 2<br />We need to analyze each sentence to see which one best describes this process.<br /><br />## Step 3<br />Looking at the options, sentence B states "For example, milk changes shape when a person pours it from a carton into a glass, but the amount of milk stays the same." This sentence describes a liquid (milk) changing shape, which is a characteristic of a liquid, but the amount of milk remains the same, which is a characteristic of a solid.