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| Question | Answer |
| What does the respiratory system do? | The respiratory system takes in oxygen. |
| What does the digestive system do? | The digestive system makes food available in a form the body can use. |
| What does the circulatory system do? | The circulatory system carries the food and oxygen to the cells where it is needed. |
| What does the excretory system do? | The excretory system gets rid of the wastes. |
| What does the skeletal system do? | The skeletal system supports the body and enables it to move. |
| What is digestion? | Digestion is the process of breaking down food into a usable form and making the nutrients available. |
| What are the two types of digestion? | The two types of digestion are mechanical and chemical digestion. |
| What is mechanical digestion? | Mechanical digestion happens when you tear and chew food with your teeth. |
| What is chemical digestion? | Chemical digestion happens when saliva in your mouth and gastric juice in your stomach break down your food. |
| What are the four types of teeth we have? | -Canines -Incisors -Premolars -Molars |
| What do the canines do? | The canine teeth don't have a significant function or job in humans but in animals, the long canines are used to hold onto the food as it is torn apart. |
| What do incisors do? | The incisors are the pairs of teeth at the front and their job is to bite off pieces small enough to chew. |
| What do the molars and the premolars do? | The premolars and molars grind the food into smaller and smaller pieces as you chew. |
| What is saliva? | Saliva is a watery liquid produced by your salivary glands. |
| What does saliva do? | Saliva contains a chemical that starts to change any starch in the food into glucose. It also moistens the food making it easy to swallow. |
| What is bolus? | Bolus is when food is rolled into a ball by the tongue. |
| What is an oesophagus? | The oesophagus is a long, muscular tube that has the mouth at one end and the stomach at its other. |
| What does the oesophagus do? | The muscles of the oesophagus push the ball of food down the tube by contracting behind the ball. |
| What is peristalsis? | Peristalsis is the process of pushing food through the digestive tract by altering contraction and relaxation of muscles. |
| What is epiglottis? | The flap of skin in the oesaphagus that stops food from entering the windpipe. |
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