Question

A family is making a sausage omelet for breakfast. Andy slices the sausage. Mark shreds some cheese. Joy melts some butter in a pan. And Sam breaks the eggs and cooks everything in a pan.

Whose tasks are examples of physical changes?

Select all that apply.

Responses

Joy melting some butter.Joy melting some butter.

Sam cooking eggs.Sam cooking eggs.

Mark shredding cheese.Mark shredding cheese.

Andy slicing the sausage.

Answers

GPT-4o mini
All of the tasks listed are examples of physical changes. Here’s a breakdown:

1. **Joy melting some butter**: This is a physical change because melting is a change in state from solid to liquid without altering the chemical composition of the butter.

2. **Sam cooking eggs**: This can be seen as a physical change, but it's arguable because cooking eggs also involves a chemical change due to the denaturation of proteins. However, the act of cooking itself (applying heat) typically results in observable physical changes (e.g., from liquid to solid).

3. **Mark shredding cheese**: This is a physical change because shredding is a process that changes the size and shape of the cheese but does not change its chemical structure.

4. **Andy slicing the sausage**: This is also a physical change as slicing the sausage changes its shape and size but not its chemical composition.

Based on the clearer examples of physical changes, the responses that are definitely physical changes are:

- Joy melting some butter.
- Mark shredding cheese.
- Andy slicing the sausage.

You could consider Sam cooking eggs a physical change, but it also involves chemical changes. The clearest answers are Joy, Mark, and Andy's tasks.