Show:
Oxygen Production
Food Production
Health and Medicine
Environmental Cleanup
Environmental recycling
100
What does the air you breath depends part on?
bacteria
100
What do bacteria that grow in milk produce
They produce dairy
100
True or False, does bacteria living in your body keep you healthy?
True!
100
Some bacteria help to clean up Earth's land and water
What is Environmental Cleanup
100
True or False- Bacteria's recycle 
TRUE!!
200
As autotrophic bacteria use the sun's energy to produce food, they release.....what?
oxygen into the air 
200
True or False, can some bacteria's spoil milk?
True
200
In which system in your body does the intestines teem with bacteria 
Digestive system!
200

True or False-  Certain bacteria can convert the poisonous chemical in oil into harmful substances

False (harmless)
200
organisms that break down large, complex chemicals in dead organisms into small, simple chemicals
What are decomposers
300
Billions of years ago, Earth had very little......what?
oxygen 
300
What are some things that indicate spoiled foods?
smells and tastes foul and can make you very sick. 
300
True or False, all bacteria's are harmful/bad
False! Some bacteria's are good!
300
True or False-  all bacteria's are good
False- many bacteria's are bad but some are good
300
True or False- Decomposers are NOT "nature's recyclers."
False- they ARE 
400
Scientists think that autotrophic bacteria were responsible for........what?
first adding oxygen to Earth's atmosphere
400
During ________ the food is heated to a temperature  that is high enough to kill most harmful bacteria without changing the taste of the food 
Pasteurization 
400
What do scientists use to make medicines and other substances? 
certain bacteria's 
400
True or False- Scientists have put bacteria's to work cleaning up oil spills in oceans and gasoline leaks in the soil under gas stations.
TRUE!!!
400
Decomposing ______ spend the next months breaking down the chemicals in the dead leaves 
bacteria
500
Today, the distant offspring of those bacteria help.........what?
they help keep oxygen levels in the air stable
500

What are some foods helpful bacteria produce?

cheese, sauerkraut, and pickles
500
By manipulating the bacteria's genetic material, scientist can cause bacteria to produce______
human insulin
500
True or False- Some bacteria's help to clean up ONLY the water
FALSE!! They also help to clean up land
500
Another type of recycling bacteria, called_________ help plants survive 
nitrogen-fixing bacteria