Monthly+Projects

Organic Battery Due May 17th

In this project, you will experiment with 2 different fruits or vegetables to test which one (or both) will light up an LED light. Observe which connection worked and what you could do to the brightness of your LED light. Your findings and scientific process will be displayed on a trifold poster board.

10 pts. - MATERIALS: 1. Materials provided by Mrs. Harris. 2. Your choice of fruits or vegetables (that can be purchased at a local grocery store). 3. A trifold display board (that can be purchased at any office supply store)

5 pts. - QUESTION: Pose a question that you will test for your experiment. For example, which fruit/vegetable will act as a battery to light an LED? Does a fruit work better than a vegetable to light an LED? Does an acidic fruit work better than a non-acidic fruit to light the LED?

5 pts. - HYPOTHESIS: Make some predictions. For example, I think the will make a brighter light than the because _. Write your predictions on your board.

20 pts. - PROCEDURES: Think about how we made circuits during science. We needed an energy source, wires and a user. Use your materials to make a complete circuit. You will do this for both of your fruits or vegetables to test your hypothesis. Which fruits or vegetables did you use that can power the LED? Write a detailed explanation of your procedures. Include a diagram of your circuit.

20 pts. - OBSERVATIONS: Write about what you observed during your experiment. Be sure to explain what you observe for both fruits/vegetables you used. Remember, only what you observed!

25 pts. RESULTS: Explain your results of the experiment. Questions to think about: Was your hypothesis correct? How do your predictions compare to your results? Why do you think your results were the same or different? Does one fruit or vegetable work better than the other? Does the LED require certain amounts of energy to work? How many trails did you do to get your LED to work?

15 pts. - PRESENTATION: Be sure to do your best work and include any details that go beyond the required elements above. Your science project will be displayed for open house on May 17th. Along with your completed, include the actual set-up for your experiment. I will give you class time to set-up your display. So store your fruits/vegetables and materials in a labeled Ziploc bag. You only have to set-up a model for one of the fruits/vegetable you experimented with.

Total of 100 points 