1.Fast,apparatus were smaller, easier to handle
2.A box with a complete set, ready to run the experiments
3. Low cost for chemicals
4.More attractive
5. Disadvantage because yield is small ,but reaction occurred, should continue.
6.Less chemicals used,less time taken.
7. Small ,easy to use,less space required.
8.It is more interesting
9.Students have to be more careful.If not,unsatisfied result is obtained, but experiment can be repeated.