Physical/Chemical Change/Conservation of matter

In a ___________a new substance is created.

• Chemical change

• Physical change

In a _______ the same substance changes form.

• Chemical change

• Physical Change

• Both

In a ________ there is a change in appearance of the substance you start with

• chemical change

• physical change

• both

Making toast is a ______ change

• Physical

• Chemical

A puddle evaporating is a _______ change

• Physical

• Chemical

A firework exploding is a _______ change

• Physical

• Chemical

Rain turning to snow is a _______ change

• Chemical

• Physical

What is the key difference between physical change and chemical change

What signs of a chemical reaction can also accompany physical changes of matter? Select all that apply

• change in color

• change in odor

• change in temperature of the substance

• gas release

• formation of a solid percipitate

The law of conservation of matter applies _______

• only to physical changes of matter

• only to chemical reactions

• to both physical and chemical changes of matter