Trees give us oxygen,do they give us water
Aim: Boiling contaminated water for 20 mins. and hopefully
it has killed all the germs.
Method:
1. Take some bad water.
2. Boil the water for 20 mins.
3.Then test it if is still bad or with germs,using the microscope.
Equipment:
it has killed all the germs.
Method:
1. Take some bad water.
2. Boil the water for 20 mins.
3.Then test it if is still bad or with germs,using the microscope.
Equipment:
Contaminated water ,container,tripod,microscope
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