Can someone check my answer?

____ is anything that has mass and volume.

My answer: matter.

Is that correct?

Well, yes if it has mass and volume it is matter.

The converse is also true.
If it is matter, then it has mass and volume.
https://www.varsitytutors.com/hotmath/hotmath_help/topics/converse-inverse-contrapositive

Thank you!

Yes, your answer is correct. Matter is anything that has mass and volume. To check the answer, you can refer to scientific definitions or textbooks that explain the concept of matter. Additionally, you can also use online resources or reputable educational websites to confirm that matter is indeed defined as anything that has mass and volume.