Question 1
Which of the following is a physical change?
◦ baking a cake
◦ solid dry ice changing to a gas
◦ a tomato ripening
◦ digesting a meal
◦ fermenting grapes to produce wine
Question 2
Which of the following is a chemical change?
◦ cutting a tomato
◦ hammering gold into foil
◦ melting ice
◦ burning natural gas
◦ cutting paper