Procedure
1. Collect materials from Ms Thompson.
2. Pour the dish soap into the washbasin.
3. Record data.
4. Pour vinegar and baking soda into the washbasin.
5. Record your observation.
6. Clean off the oil on the surface gently.
7. Record data.
8. Place sponge on the surface of oil and absorb oil.
9. Record your observation.
10. Clean up.
2. Pour the dish soap into the washbasin.
3. Record data.
4. Pour vinegar and baking soda into the washbasin.
5. Record your observation.
6. Clean off the oil on the surface gently.
7. Record data.
8. Place sponge on the surface of oil and absorb oil.
9. Record your observation.
10. Clean up.