Bacteria Busters

Your hands are covered with millions of microbes! You are constantly picking up more and leaving some behind everywhere you go.

http://www.uskidsmags.com/blog/2012/01/19/adc-are-bacteria-always-dangerous/

https://sites.google.com/a/pvlearners.net/case-400/home

Are all bacteria dangerous?

Bacteria 2014

Learning Modules

http://kids.nationalgeographic.com/kids/games/puzzlesquizzes/quizyournoodle-bacteria/

Bacteria Buster Activities

http://www.bbc.co.uk/bitesize/ks2/science/living_things/microorganisms/play/

Experiment

Water Surface Tension

Materials:

· Cup or bowl of water

· Pinch of pepper

· Dishwashing soap

Instructions:

1. Sprinkle a pinch of pepper on the water.

2. Notice how the pepper floats on the water.

3. Put liquid soap on your pointer finger.

4. Dip your finger into the water.

What happens to the pepper?

Why?

Water has a kind of skin that is called surface tension. The pepper floats because it is not heavy enough to break through the skin. Soap breaks the water’s skin and moves the pepper.

When you wash your hands, soap allows oil and bacteria to be pulled away from your skin and washed down the drain.

Copy/Paste this URL http://www.youtube.com/watch?v=V7LUOFKEShU

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