Question

how to maintain a constant temperature in an experiment

Answer 1

hey dear here is your answer

fill a beaker with hot water then put whatever you need to keep warm inside it..

you can maintain the temperature using addition of cold / hot water as required..

hope it will help you
thanx

Answer 2

''Fill a beaker with hot water then put whatever you need to keep warm inside it. You can maintain thetemperature using the addition of cold/hot water as required. e.g.keeping yeast from denaturing put it into a test tube then keep the test tube inside the beaker full of water. An incubator would be ideal.''