We had a fantastically messy science lesson this afternoon which involved making a physical version of the digestive system. We had a ‘recipe’ which we followed carefully:
Step-by-Step Instructions
1. Breaking Down the Food (Mouth & Teeth)
* Place the banana, cracker, and baked beans into a bowl.
* Add a little water to represent saliva.
2. The Stomach Churn
* Pour the mashed food mixture into a sealable plastic bag (this represents the stomach).
3. Nutrient Absorption (Small Intestine)
* Cut one leg off the pair of tights.
* Carefully cut a corner of the plastic bag and pour the food soup into the top of the tights leg, holding it over a bowl.
* Gently squeeze and massage the tights over the bowl.
4. Making Waste (Large Intestine & Rectum/Anus)
* Keep squeezing the tights until most of the liquid is gone.
* Cut a small hole at the bottom of the tights.
* Squeeze the remaining solid waste out onto a tray or into a cup to demonstrate how the large intestine and rectum/anus eliminate waste. The question is ‘Who created the best poo? ‘ 
