Tuesday, February 26, 2013

Chem.

Formal Lab Report
INTRODUCTION:
One purpose of this stressing ground was to observe the prison term it took for a candle attack to supplant under a beaker. A constant variable in the test was the candle because it was the same candle every time. An mugwump variable for the experiment would be the beaker sizes because they determine the results of the observation. A hooklike variable in the test would be the time it took the set fire to to remove because it was determined by the size of the beaker. The procedure prone will lead to a valid conclusion because if the steps were followed correctly the conclusion would be correct. A hypothesis for this test would be that if the beakers flap bigger, the time for the flame to extinguish would weigh longer.
PROCEDURE:
A candle, placed on the lab table, was lit. A beaker was placed over the burning candle and a timekeeper was started. Once the flame extinguished the timer stopped and the time on it was recorded. After the time was recorded, the candle was relit. Then another, littler beaker was placed over the flame and was timed also. Once the flame extinguished, the time was recorded again.

DATA:
BEAKERS| TIMES TO EXTINGUISH flame|
250 mL| 12.84 seconds|
350 mL| 15.97 seconds|
|

OBSERVATIONS| QUESTIONS|
1. Candle is small| 1. wherefore does the cover melt in a circle?|
2. Candle is notice| 2. Why does the wax look like Styrofoam?|
3.

Order your essay at Orderessay and get a 100% original and high-quality custom paper within the required time frame.

Has a coat outside| 3. Where is the hottest part of the flame?|
4. Is white| 4. What properties let the candle burn?|
5. Short wick| 5. How does the wick not extinguish?|
6. Wick is half burned| 6. Why does the metal cause hot?|
7. Wick is black| 7. What happens if the flame is covered up?|
8. Indented circle around wick| 8. Why does the wax poise immediately?|
9. Metal shell is dented on potty| 9. Why does the wax chip?|
10. Wax is hard| 10. Why does the wick turn black but everything else is...If you want to get a full essay, order it on our website: Orderessay



If you want to get a full essay, wisit our page: write my essay .

No comments:

Post a Comment