Question

Chemical changes happen when atomic bonds are broken or created during chemical reactions. A chemical change makes a new substance that cannot be reversed. A physical change, on the other hand, can usually be reversed. The ice cream on this cone is melting. Is this a physical or chemical change?

Claim: *state it here*

Evidence: *state the evidence here*

Reasoning: *state the reasoning here*

Paragraph: *state the whole CER in a paragraph order*

Please help soon as possible!

Answer 1

The ice cream on this cone is melting. Is this a physical or chemical change?

Claim: This is a physical change.

Evidence: A physical change is when matter changes forms but not chemical identity¹. The ice cream is still the same substance, just in a different state of matter.

Reasoning: The ice cream on the cone is changing from a solid to a liquid as it melts. This is a change in the physical properties of the ice cream, such as shape and temperature, but not a change in its chemical composition. The ice cream can be frozen again to become solid, which shows that the change is reversible.

Paragraph: A possible paragraph that summarizes the CER is:

The melting of ice cream on a cone is an example of a physical change. A physical change is when matter changes forms but not chemical identity. The ice cream is still the same substance, just in a different state of matter. The ice cream on the cone is changing from a solid to a liquid as it melts. This is a change in the physical properties of the ice cream, such as shape and temperature, but not a change in its chemical composition. The ice cream can be frozen again to become solid, which shows that the change is reversible. Therefore, the melting of ice cream on a cone is a physical change and not a chemical change.