What are examples of physical changes?

Question

Select all that apply.

Responses

folding some paper to make a model airplanefolding some paper to make a model airplane

combining hydrogen and oxygen to make watercombining hydrogen and oxygen to make water

shattering a glassshattering a glass

cooking an egg

Answer 1

Examples of physical changes from the provided options include:

1. Folding some paper to make a model airplane - This is a physical change as the paper is still paper and only its shape has changed.

2. Shattering a glass - This is also a physical change because the glass breaks into pieces, but its chemical composition remains the same.

The other two options are not physical changes:

• Combining hydrogen and oxygen to make water - This is a chemical change, as new substances are formed (water).

• Cooking an egg - This is also a chemical change because the proteins in the egg undergo a change that transforms them into a different substance.

So, the correct answers are:

• Folding some paper to make a model airplane
• Shattering a glass