Question

shivani and her team take a pizza break inside their ship to celebrate a successful first day of exploring! one of her teammates takes a big bite and chews with his mouth open, exclaiming he is making a physical change to the pizza (some chunks spewing out of his mouth). another (frankly grossed - out) crew mate who just came back from using the bathroom makes the claim that eating pizza causes chemical changes to the pizza instead. shivani intervenes and explains to her crew that by eating, they are making both physical and chemical changes. help shivani explain how eating causes both physical and chemical changes to the pizza. sentence starters: evidence that the pizza underwent a physical change is... this is a physical change because... evidence that the pizza underwent a chemical change is... this is a chemical change because...

Explanation:

• Physical change evidence: Chewing pizza into smaller pieces.
• Physical change reason: No new substance formed; just size/shape change.
• Chemical change evidence: Digestion (enzymes break down pizza components).
• Chemical change reason: New substances (e.g., simpler molecules) formed.

Answer:

Evidence that the pizza underwent a physical change is chewing the pizza into smaller chunks.
This is a physical change because no new substances are formed; only the size and shape of the pizza pieces change.
Evidence that the pizza underwent a chemical change is the digestion process (e.g., enzymes in saliva and stomach acting on pizza components).
This is a chemical change because new substances (such as simpler molecules from breaking down complex carbohydrates, proteins, and fats in pizza) are formed.