Rules At Laboratory

M. ALIF GHIFARI RACHMAN

7B

Rules At Laboratory

1.      Before start, please always using protector glasses while heating and mixing chemistry material

2.     Do not showing reacting glass directly  to you or someone else while heating chemistry

3.     Do not in hale gas or chemistry material directly except you have order from your teacher.

4.     Do not keep a flammable material chemistry  close with fire and do not heating directly

5.     Read  direction  from material chemistry packaging

6.     If your body infected by chemistry material, please directly wash with flowing water or inform your teacher directly

7.     Do not return used material chemistry back to the bottle because will contaminated