Thursday, 21 June 2018

Rocks types

Rocks questions and answers

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

Mass of rocks

Mass : 41

Mass : 17g

Mass : 23

Mass : 32g

Mass : 43g

Mass : 26g

Mass : 34g

Mass : 34g

Mass : 28g

Mass : 42g

Mass : 12g

Mass : 23g

Mass : 31

Monday, 28 May 2018

Lab equipment

Measuring Cylinder : Used to measure the volume of liquid
                       Heat shield : Used to protect  things from heat.
Beaker : For holding and pouring liquids.
Evaporating dish : For evaporating liquid mixtures.
Watch glass : To hold a solid while being weighed or to cover a beaker.

Inoculating wire : Used to spread bacteria on a petrie dish.

Specimen cup : Is used to test urine and keep chemicals.
Test tube : For holding, mixing and heating small amounts of liquids and solids.
Funnel : Makes pouring easier
Scoopula: Used to transfer solids
Pipette : Used to move small amounts of liquid chemicals.

Stirring rod : Used to mix and stir solutions.

Clamp : Used to secure objects

Erlenmeyer flask : holding, heating mixing liquids.

Rocks types