PURPOSE
The purpose of this experiment was to determine if temperature affects
the mass of crystal growth.
I became interested in this idea because I have my own crystal growing
kit at home, and I would like to observe which temperature they grow largest
in.
The information gained from this experiment could aid scientists in
growing larger crystals, as well as manufacturers who are interested in
growing them. The computer industry has many uses for crystals, and
this knowledge could help them.
HYPOTHESIS
My hypothesis is that the crystals will grow best in warm temperature.
I base my hypothesis on the fact that I have grown crystals before and
the directions informed me to put them on a windowsill where they could
be reached by sunlight.
EXPERIMENT DESIGN The constants in this study were: the same amount of solute, the
same kind of solvent, the same concentration, and the same kind of container.
The manipulated variable was the temperature the crystals were grown
in.
The responding variable was the mass of the crystal growth.
To measure the responding variable I will weigh the container in grams.
PROCEDURES 1. Purchase crystal growing kit.2. Gather all materials. 3. Read instructions carefully, and mix solution. 4. Repeat step 3, 8 more times. 5. Place each dish with crystal solution in a box. 6. Repeat step two eight times. 7. Take temperature for refrigerator. 8. Take temperature for are around fireplace. 9. Take temperature for are around cupboard. 10. Record all three temperatures. 11. Place three dishes of crystal solutions in the refrigerator. 12. Place three dishes of crystal solution on top of a cupboard. 13. Observe and record growth of crystals for three to four days. 14. On fourth day, dump solution from dishes. 15. Record the growth for the crystal on the cupboard. 16. After letting crystals dry, remove them from the dish. 17. Using a scale, weigh the crystals from each trial and find out which is heaviest. 18. Record results for every trial. 19. Analyze results.
RESULTS The original purpose of this experiment was to find out which temperature
crystals grew best in.
The results of the experiment were that the crystals grew largest in
hot temperature, by the fireplace.
CONCLUSION My hypothesis was that the crystals would grow best in hot temperature.
The results indicate that this hypothesis was only half-correct.
The crystals grew largest in hot temperature, but the grew the most in
cold temperature.
Because of the results of this experiment, I wonder if scientists can
create larger crystals. If they did, it might enable manufacturers
to produce better electronics.
If I were to conduct this project again I would place the crystal that
was by the fireplace in a warmer place.
Top of page htpothesis Menu of 1999-2000 Science Projects
|
|||||||||||||||||||||||
Attribution: This is a cached copy of a third party project. Many of these sites are from 20 years ago and the majority are no longer running. We show only the first page of the project. We do not save all pages since copyright belongs to the third-party author.
Science Project