Crucibles will do what very easily?
What will the oil on your skin affect the measurement of?
What are you sanding in step 4?
How long should you heat the crucible before you open the vents in step 7?
When should you stop opening the lid of the crucible to allow oxgen in?
How long should you allow the crucible to cool before you being adding the water?
How long should you heat the crucible in step 9 after you add the drops of water?
How long should you allow the crucible to cool in step 10?
How long should you reheat your crucible in step 11?
How long should you allow the crucible to cool again in step 11?