KNOW
1. Read about Spallanzani in Ch. 2 of Microbe Hunters
2. Watch this video about single-celled organisms
3. Research different kinds of single-celled organisms (both prokaryotes and eukaryotes).
Do this:
1. Perform an experiment with microbes. You can do this with someone or on your own. Here is a website with some ideas you could use for your activity.
Tell/show us about your adventure!
And do one or more of these:
2. If you’re 15 or older, enter the Germ Challenge contest, details here, http://www.cambridgesciencefestival.org/2014Festival/TheGermChallenge.aspx
3. If you can get to some pond water, take a tall drinking glass and hold it right side up into the water. Look into it and if you can see well, watch for a little while. Do you see anything interesting? If you do, draw it and tell us about it.
4. Choose 5 of the single-celled organisms you found from your research. Draw and label them. Identify what mode of locomotion they use? Identify if it is a prokaryote or a eukaryote.
5. Choose 1 of the single-celled organisms you researched and make a model of it using materials of your choosing.
6. How is integrity important to a scientist? Was it important to Spallanzani? Why or why not? How is it important to you? Write about it and share it with us.
7. Make a Venn diagram comparing prokaryotes to eukaryotes.
INTELLIGENCE
We'll be passing out petri dishes with nutrient agar in them along with sterile cotton swabs at the end of Geo-Conquest. Using sterile cotton swabs, get samples of bacteria from various places (the inside of your cheek, a doorknob, a dishrag, the phone, your ear, the steering wheel, dirt, a tree trunk, pond water, etc). Make sure to use one sterile cotton swab per sample and don’t touch the swab with your finger. Streak the swab on the agar. You could do a few different samples in the same petri dish, just don’t overlap them, give them their space. Then put the cover on, tape it or put an elastic band around it, turn it upside down (to avoid condensation), and let the bacteria grow! They grow better if they are warm and cozy.
See if you can identify what you've got growing in your dish.
Bring it and show us what sort of goodies you found! Also, make a little diagram (or map) of your dish showing where each spot of bacteria came from, OR, using a permanent marker, you could mark the outside of your dish so you know where things are. Here’s a site with more info on successfully growing your new “pets!” http://www.scienceenterprises.com/growingbacteria.aspx
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