## Chemistry 9th Edition

a) Cutting food - $Physical$ $change$ b) Interaction of food with saliva and digestive enzymes - $Chemical$ $change$ c) Proteins being broken down into amino acids - $Chemical$ $change$ d) Complex sugars being broken down into simple sugars - $Chemical$ $change$ e) Making maple syrup by heating maple sap to remove water through evaporation - $Physical$ $change$ f) DNA unwinding - $Physical$ $change$