Question

When you add heat to wood it burns. The cellulose that makes up wood is converted to carbon dioxide, water vapor, and ash. This transfer of energy caused a change to the _____ of wood.

chemical properties



physical properties



internal properties

Answer 1

Chemical properties.........

Answer 2

Burning is a chemical change, and this changed the chemical properties of the wood. Indicators that chemical change has taken place are fizzing, energy being given off or color changes.