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