Thursday, 21 June 2018
1. What are the differences between metamorphic, igneous and sedimentary rocks?
Sedimentary rocks have layers and usually contain fossils. Igneous rocks have interlocking crystals and never contain fossils and are made during volcano eruptions. Metamorphic rocks are caused by heat and pressure and are usually harder and denser than sedimentary rocks.
2. What rock did you find most interesting?
I found the igneous rock most interesting because rocks that are formed by volcanoes have very unique shapes and some can float.
3. What are grains in the rock? Can you show me?
Grains are what give the rock there look and texture.
4. What are the crystals in the rocks? Can you show me?
Crystals are the little specs on the rock (which are minerals) that form over time on the surface of rocks.
Wednesday, 13 June 2018
Monday, 28 May 2018
Inoculating wire : Used to spread bacteria on a petrie dish.
Specimen cup : Is used to test urine and keep chemicals.
Stirring rod : Used to mix and stir solutions.
Clamp : Used to secure objects
Erlenmeyer flask : holding, heating mixing liquids.
at May 28, 2018