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This Science Experiment looks at whether Fish can be Raised in a Bottle

Subject:

Science  

Grades:

6, 7, 8  

Title – FISH IN A BOTTLE

By – Judy Schneider

Primary Subject – Science

Secondary Subjects – Science

Grade Level – 6 – 8 (adaptable)

SCIENCE PROJECT OF THE WEEK

FISH IN A BOTTLE

PROBLEM: Can I raise small fish in a closed system in a gallon bottle?

RESEARCH: Go to a store that sells fish and find out what fish need to live. Be sure to get the Bibliography information from the person you interview. This aquarium can be self-sustaining. But you will have to find out what to do to start it right.

HYPOTHESIS: What do you think you will have to do to make your aquarium self-sustaining?

MATERIALS:          

A one-gallon jar (glass or plastic, any shape) – a restaurant is a good source for a jar from pickles, olives, or cherries          

Gravel – about 1½ pounds

1 adult guppy

1 very small snail – you may get one with the plants, but make sure you have only one in the jar

Fish food

Aquatic plants – sagittaria, eelgrass, anacharis

PROCEDURE:

1. Wash the jar well

2. Fill three-quarters full with room-temperature tap water. Let stand for at least two days, uncovered.

3. To clean the graves, place in a strainer and rinse with water. Do not use soap.

4. Transfer the gravel to the bottom of the jar. You should have a 2-inch layer.

5. Put the aquarium in a spot where it will get sunlight, but not direct sunlight, it is too hot.

6. Add plants and fish to the aquarium. Even if the plants do not have roots, push the stems into the gravel.

7. Observe your aquarium for 28 days. Make careful observations each day. Many days you may only observe that there was no change.

8. Enrichment: Get a male and a female guppy for your aquarium instead of only one guppy.

          Feeder guppies are very inexpensive and will work well for this experiment.

9. Enrichment: Be sure the jar you get has a lid. After about one week seal the jar with the lid and do not open it for the remaining 21 days of your experiment.

DATA: Make a data table to record your observations for the 28 days.

CONCLUSION: This is not optional. You must explain what you learned by doing this activity.

Remember that you must answer the question you asked in your original problem statement.

NOTE: BE SURE TO HAVE YOUR PARENT OR GUARDIAN SIGN YOUR WORK. PARENTS: YOUR SIGNATURE SHOWS THAT YOUR CHILD, NOT YOU, HAS DONE THE WORK.

E-Mail

Judy Schneider

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