Sept 30-- Lab with physical and chemical change

Objective:
to observe some different types of chemical changes.

Materials and Equipments:
 Reminder: always wear safety goggles!


1 test tube rack
4 small test tubes
1 glass square
4 medicine droppers
4 unknown chemicals

Procedure:
Refer to the Lab textbook on page 18

Result:

Conclusion:
Different chemical changes have different reactions, such as bubbles, changing colors, etc.