Observing the effects of Acid Rain.
Equipment:
- Little chunk of apple
- Baby Flower
- 3 drops of universe indicator
- 3 drops of bromothymol blue
- A scoop of calcium carbonate
- A scoop of sodium sulfide + water drops
- Weigh boat
- Petri dish
- Stir
- 5 drops of acid
Method:
1. Moist the following things: Baby flower, Calcium carbonate, and the chunk of apple.
2. The weigh boat should be in the middle of the petri dish. Put the chunk of apple, the baby flower, 3 drops of universe indicator and the 3 drops of bromothymol blue on the petri dish, calcium carbonate, and make sure that each one of them does not touch one another and put it around the weigh boat.
3. Get the sodium sulfide and put it on the weigh boat and put 2-3 drops of water on it, after that mixed it in with the sodium sulfide. After that stir it.
4. Lastly you quickly put 5 drops of acid in the weigh boat, and quickly close the petri dish with a cover. Observe what happens to the five things that surrounds the weigh boat.
Results:
The chunk of apple hardened, and also the baby flower. The universal indicator went to red from green and the bromothymol blue went from blue to green. The calcium carbonate was more crusty after the acid rain.
Discussion:
After the acid, the plants that it rains to becomes hardened and the concrete becomes more crusty.
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