1. Sedimentary-formed from particles of sand, shells, pebbles, and other fragments. Generally soft and breaks apart easily.
2. Metamorphic-formed under the surface of earth from the change from the heat and pressure. These rocks will have a shinny crystal like shine to them.
3. Igneous-formed when the magma cools down and hardens. Won't have a shinny look to it. Sometimes will have tiny holes in them.
The number of neutrons
and the mass number
Both pH and Heat effect catalase function therefore we will measure the function based upon changing these variables.