La Carreta

Bacterium


How do you grow bacterium?
Purpose:

* We want to know how do you grow bacterium.
* How large a bacterium grows?

Research:

Growing Bacterium in Petri Dishes:

*In this experiment, Steve Spangler collected samples from items around the office.
* You will not believe what he found.
* Petri dish prepared with nutrient agar.

Growing Bacterium:* The best place to successfully and safely grow bacteria, mold and yeast are in specially shaped glass or plastic dishes called Petri Dishes.
* Cultures grow best with gentle heat in the rangebetween 70 degrees to 95 degrees Fahrenheit.
* Cultures will grow at lower temperatures but at a much slower rate.

How To Buy and Grow Bacterium in Agar Petri Dishes:

* Most bacteriacollected in the environment will not be harmful.
* Once they multiply into millions of colonies in a petri dish they become more of a hazard.
* Bacteria are microorganisms that grow everywhere.How to Grow Bacterium in Agar?

* Agar is a compound that is derived from algae.
* It contains many nutrients, and bacterium can thrive on it.
* It is gelatinous, and is created by mixingpowdered agar with water and adding heat.

How do you grow bacterium using a Petri dish?

* To grow bacteria on a Petri dish, you will need several items.
* The Petri dish must containagar, which is the source of the nutrients for the bacteria you want to grow.
* They must be sterile so that the bacteria you put in your dish is the only bacteria there, and not extra from anexposed cotton swab.

Hypothesis:
* The Bacteria grow faster when they are at low temperatures.
* We want to learn how to grow a bacterium to see how to try to stop it, because we think thatis infective to living things.
* Also, this experiment is ideal to show the little ones (and remind adults) the importance of washing hands before eating to prevent diseases such as cholera and...