Answer:
1. Sewing machine - used to sew fabrics together.
2. Saponifiction - used for making soap.
3. Chalk - used for a limestone that is a base which can be use for writing on a black boared and teaching porposes.
4.wooden case - used for puting pencils it is not the best for pencils but it's best for protection and pencils/pens wont be lost
Explanation: its not that easy tho but try and try until you succeed.
