What is biomaterial? What are the popular biomaterials? What is possible with them and what could they enable? How do you create biodegradable plastic?

Materials/Ingredients needed:

Corrugated plastic tray or similar container (6x9); 60ml/60g of water; 6g potato starch; 6g gelatin; 6g glycerin;

Tools needed:

Beaker; Measuring spoons and/or kitchen scale; Hot plate; Stirrer; (You could use a small pot and stove if you're doing it at home)