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Microorganisms for Kids


Microorganisms, also called microbes, are extremely tiny organisms that can only be seen under a microscope. Microorganisms are one of the most diverse organisms and they include bacteria, fungi, archaea, protists, green algae, plankton and amoeba. Some scientists also classify viruses as microorganisms. Most microorganisms are single-celled, but few varieties are also multi-cellular. Microorganisms can be found virtually in every part of Earth from deep sea vents, hot springs, deep buried rocks to high up in the atmosphere.
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Different Types of Bacteria
Grade: 5 - 12
The lesson describes different types of bacteria and how they can help or hurt us.

Grade: 5 - 12
Get a close look at the microscopic community of dozens of species found in almost every aquatic habitat. The community includes bacteria, algae and small metazoa.

How A Virus Invades Your Body
Grade: 5 - 12
The lesson explains how a flu virus can trick a single cell into making a million more viruses. When we get the flu, viruses turn our cells into tiny factories that help spread the disease.

Active Amoeba Feeding
Grade: 5 - 12
Watch an amoeba (Vannella species) under a microscope as it is feeding.

Microbial Universe - part 1
Grade: 5 - 12
A documentary on microorganisms. The invisible world of microorganisms is a dynamic one, and all other life forms depend on microbial activity.

Microbial Universe - part 2
Grade: 5 - 12

Microbial Universe - part 3
Grade: 5 - 12

Microbial Universe - part 4
Grade: 5 - 12

Flagella and Cilia
Grade: 5 - 12
The video shows the movement of flagella and cilia in algae under the microscope.

You Are Mainly Microbe. Yes!
Grade: 5 - 12
What is your body made of? Human cells? Guess again. Your body is essentially a walking home for trillions of bacteria!

Bacteria: Growth Phases
Grade: 5 - 12
Learn about bacterial colonies and their four phases of growth: the lag phase, the log phase, the stationary phase, and the death phase.

Virus, part 1
Grade: 5 - 12
The lesson explains how viruses operate and how our immune system defends us. Our bodies are under attack every minute of the day by many different kinds of viruses.

Virus, part 2
Grade: 5 - 12
Learn more about viruses.

Virus Crisis
Grade: 5 - 12
Learn how global trade and travel has helped spread more than 30 mysterious and sometimes deadly viral diseases from around the globe in last few decades.

HIV Virus
Grade: 5 - 12
The presentation shows the process of HIV virus' entry into a healthy cell.

In Praise of Yeast
Grade: 5 - 12
Learn about yeast - eukaryotic unicellular microorganisms commonly used for fermentation. The video looks at the vital role yeasts play in modern food and drug industry.

New Uses for Microorganisms
Grade: 8 - 12
The presentation looks at microorganisms that can restore polluted environments and serve as new energy sources. Geobacter, a microorganism recently discovered, can be used to address a broad range of environmental concerns.

How is Bacteria Used in Genetic Engineering?
Grade: 8 - 12
The lesson explains how scientists use bacteria extensively in genetic engineering to study life, disease and medicine.

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Common Core State Standards  
Related science topics: Plants, Animals & Wildlife
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