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Growing crystals on household objects.
Transcript of Growing crystals on household objects.
-4 large glasses
-1 pipe cleaner
-1 rubber band
-1 metal washer
-1 push pin
-4 Popsicle sticks
(Video of this is in a separate file on USB)
1.) Tie fishing line to an object, tie this to a Popsicle stick and let dangle in glass. Repeat for each object.
2.) Fill the measuring cup with 400 ML of hot water, stir the alum powder into the water until it dissolves, then pour more alum powder and continue stirring. This is your saturated solution.
3.) Carefully pour the water into the cups.
4.) Leave glasses in a room that isn't too hot.
I predict that the pipe cleaner will grow the best crystal because I believe that since the pipe cleaner is textured it will catch solute molecules easier then the other objects.
Grade 9 science exam experiment
Growing crystals on household objects
What household object will grow the best crystal?
In conclusion, I have looked at the experiment everyday for 5 days and nothing has changed. No crystals have started to form. I think this may have happened because the temperature of the room could have been too cold for any crystals to form; there might not have been enough alum powder so the solution was not saturated enough; or it could have needed more time.