PLEASE HEL! :< Which of the following statements best describes Sarah's investigation?

Get a piggy bank and a hammer.
Place the piggy bank on the counter.
Use the hammer and hit the piggy bank.
Record observations.

Which of the following statement is Sarah's best investigating?

A. Breaking a piggy bank causes a temperature change.
B. Breaking a piggy bank is a chemical change.
C. Breaking a piggy bank is a phase change.
D. Breaking a piggy bank is a physical change.

D. Breaking a piggy bank is a physical change.

Explanation:

The observation that can made from this investigation is that breaking a piggy bank is a physical change.

What is a physical change?

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.