Describe what changes you could make to the procedure for testing relative melting points so
that the results are more accurate.

1. Seal end of melting point tube with Bunsen burner
2. tap solid into open end of melting point tube and tap again so the solid goes to the bottom of the tube
3. Put tube in melting point apparatus- allow temp to rise slowly and record when it first starts to melt and when it finishes.

It is sure ( overimitation)

The law of conservation of mass states that a mass of an object or the amount of matter composed inside an object or thing will not change unless it is added or removed of the matter that is contained in the object itself.