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brine shrimp

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amanda long

on 18 September 2012

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Transcript of brine shrimp

Brine Shrimp
by Amanda long and Camiya Felton purpose :
the purpose for this brine shrimp project is that the world needs to support the growth of brine shrimp. Brine Shrimp are important to the environment because they clean lakes and are food for birds. Therefore we want to investigate under which conditions their eggs will hatch the best. Question: How does water
pollution affect the number
of Brine Shrimp that will
hatch? Hypothesis:
there would be less eggs to hatch in the polluted water
than the clean
water. Variables:
Independent Variable: Polluted water
Dependent Variable: Number of Brine Shrimp that will hatch
Control: Clean water Definition of Hypothesis:
An educated guess about the result of an experiment. Observations:
Day 0 - Clean Water and Polluted Water- the eggs look like popcorn kernels. Day 1 & 2- Clean water- about 73 brine shrimps hatched and they look like snow flakes and they are very fast. Day 1 & 2- Polluted Water- about 11 brine shrimps hatched and they look like sprinkles and they're clear. Conclusion:
Our hypothesis is that less eggs would hatch in polluted water. Our hypothesis was correct. It was correct because, only eleven eggs hatched but two died. Seventy three eggs hatched in the clean water. This experiment was important because the world needs to support the growth of Brine Shrimp. As a result the lakes can be cleaner and the birds could have food. This experiment could be improved if there were more trials. I learned that more Brine Shrimp eggs will hatch in clean water than polluted water. Materials:
1: brine shrimp egg
2:distilled water
3: sea salt
4: plastic cups
5: microscope
9:petri dish
10: graduated cylinder
11: electronic balance Research:
The scientific name for Brine Shrimp is Artemia Salina. Lobsters and crabs are related to Brine Shrimp. Brine Shrimp live in the Great Salt Lakes, Mono Lake, and in England. The average size of Brine Shrimp is half an inch. Some colors of Brine Shrimp are - blue, green, red, brown, and clear. Brine Shrimp reproduce from May to December. It takes 3 to 6 weeks for newly hatched -also known as Naplii- to mature. Brine Shrimp are important to the environment because they clean lakes and provide food for the birds. Bar graph PROCEDURES:
1:prepare brine shrimp sollution by mixing one gram of sea salt with 100 ml of distilled water mix these in a large beaker using spoons
2: lable each cup as followed clean and polluted
3: pour 50 ml of prepared salt water in each cup.
4: place drop of bleach in the cup labled polluted
5: raise your hand to get your egg
6: cover the cups and wait for further instructions.
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