Read the statement carefully and choose the correct option:
1. A student says,
"Whenever heat is used, the change must be a chemical change."
Which response best evaluates the student's statement?
"Whenever heat is used, the change must be a chemical change."
Which response best evaluates the student's statement?
2. A student says,
"Breaking a glass into pieces is a chemical change because the glass cannot be joined back easily."
Which response best evaluates this statement?
"Breaking a glass into pieces is a chemical change because the glass cannot be joined back easily."
Which response best evaluates this statement?