Y8+RESPIRATION

BACK TO YEAR 8 SCIENCE =Y8 RESPIRATION= HOW DO CELLS USE FOOD? HOW DO OXYGEN AND GLUCOSE GET TO OUR CELLS? HOW DOES BLOOD GET AROUND [|TRY OUT HEART SURGERY!] HOW DO THE LUNGS WORK? GETTING ENOUGH OXYGEN
 * [|Heart and circulation (password: teacher only)]
 * [|Gaseous exchange animation (password: teacher only)]