Miss Crystal's Crystals
Year 9 Science
I am making a crystal for a science project at school. This is a step-by-step, week-by-week, blog of the crystal growing and forming.
What is a crystal?
Crystals are solid materials in which the Unit Cell (a collection of atoms) is repeated in the the exact same pattern over and over.
If a solid is not a crystal, then the atoms and molecules can be random.
What substances can be used to make crystals?
What are some examples of crystals in nature? What household items can you also grow crystals from?
Lots of common household materials can be used to grow crystals. Some of these are;
- Epsom salt
- Alum (aluminium potassium sulfate)
- Photographer's hypo
- Bicarbonate of soda
- Laundry soda
- Copper sulfate
Snowflakes, diamonds and common salts are all examples of crystals that are found in nature. Narurally created diamonds are the hardest substance rating in at no.10 on Moh's Hardness Scale. Diamonds, however, can be created in a scientific laboratory aswell. These diamonds have exactly the same statitics and are exactly the same as natural diamonds. Cubic Zirconia is not naturally formed. Cubic Zirconia is used a fake diamond. It is much cheaper and of far less quality.
Plan for the week (Materials and Method)
- two 250mL beaker
- filter funnel
- filter paper
- stirring rod
- hot water
- fine nyolon thread (if you want)
- watch glass, or paper hat
- camera (to record photos of crystal growth)
- potash alum
Tuesday 17th September, 2013