Science Experiment Help

cranfordrd

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May 17, 2003
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My daughter wants to do her 7th grade Science Project on algae growth. I have 3 fw tanks and no algae! If we fill a container with water and put some food in it will algae grow? How can we "force" the growth of algae for her experiment? Any ideas?
 
Put it in direct sunlight. And put fish food in it. The main causes of algae in a fish tank is overfeeding and putting your tank in direct sunlight.
 
Miracle Grow

Fertilizer ought to do it faster than fish food.
 
science fair

Thanks! Such quick answers, looks like we'll fill 3 jars with water and a little food or fertilizer, place them in the sun and let it grow. She then wants to try 3 different types of algae killer to see which works best. Goes against my grain a bit since I change water often and keep the tanks very clean so I never use chemicals to get at the algae. I prefer Algae eaters!
 
Good luck with your daughter's science fair project! I'm in 8th grade and my project this year was "Water Temperature and its' Effect on Goldfish Respiration." It was a direct hit! My teacher LOVED it! I got an A+. Teachers seem to have this thing for experiments with growing, live objects, so I bet she'll get an A+ like me! :) :D
 
ok.

The question is "How does water temperature affect goldfish respiration?"

the supplies are: 250mL beaker, 1 goldfish (preferablly 2 Comets), thermometer, ice, fish net, a stopwatch, and a graduated cylinder
 
I suggest you go to this website for the whole procedure and everything:

http://core.ecu.edu/phys/flurchickk/Projects/Revitalise/OtherExamples/fishLab.html

OR

http://www.iit.edu/~smile/bi9207.html

and for her to make a rough estimate of gill (operculum) openings, she can go to:

http://core.ecu.edu/phys/flurchickk/Projects/Revitalise/OtherExamples/fishLab_data.txt

I suggest you do this instead of the algae one because if you already have goldfish you practically don't have to make any extra cost, and it's a great experiment! It's fun, and you learn about your goldfish at the same time.
 
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