3. A log was burned in a fireplace. Light, heat, and sound were given off as the log burned (1 point) and crackled. After the fire went out, the log had been broken down into coals and ashes.

What type of change occurred and what evidence supports this type of change?

O A chemical change occurred because the atoms were rearranged into new compounds.
O A physical change occurred because the burning of the substance produced sound waves.
O A chemical change occurred because only the shapes and sizes of the particles were changed.
O A physical change occurred because the new substances can be changed back into the original substances.