What is a good (and not too complex) way to measure the growth of bacteria?

Question

I'm doing an experiment on how temperature affects the reproduction rate of bacteria, and I need a good way to measure the results (not too complex but also accurate)

I have access to the equipment in high school chemistry lab and a limited amount of money so nothing expensive ^^

Answer 1

The easiest way, if you're growing the bacteria in a liquid medium is to use a spectrophotometer to measure the cloudiness of the culture. It's very simple, IF you have access to a spectrophotometer.

Alternatively, if you have access to a microscope and a hemocytometer slide, you could actually count a sample of the culture at different times.

Answer 2

2nd regulation of thermodynamics deals with warmth circulate, and rather says that warmth can spontaneously bypass from warm gadgets to chilly gadgets, yet not any different way around. enable's for a 2nd say that we can prepare the 2nd regulation of thermodynamics to evolution. it rather is nonetheless beside the point because of the fact the 2nd regulation of thermodynamics basically applies to closed platforms not receiving warmth from an outdoors source. The earth is an open gadget and gets warmth from the sunlight, so the randomness of the earth can shrink.

Answer 3

Plating them with dilutional factors, when you get to a dilution that you can count the colonies, multiply times the dilution factor.

Only materials needed: test tubes, medium, agar.

Answer 4

when i did a bio experiment on that last year i put sugarwater in one thing and put it in room temp and one in an ice bath and the next day it was dif. and showed the growth differently

Answer 5

i would use a microscope.

Answer 6

microscope...duh!!