Define Magma.

Define Magma. 

Magma:

Magma is hot, melted rock. It is found beneath the surface of the Earth

Magma is extremely hot liquid and semi-liquid rock located under Earth's surface.



Comments

Post a Comment

Popular posts from this blog

What is a Salt?

Image
What is a Salt? Salt : A  salt  is a  chemical  compound consisting of an ionic assembly of cations and anions. Substance produced by the reaction of an acid with a base.  Salt , also called sodium chloride, mineral substance of great importance to human and animal health, as well as to industry.  Table salt is called common salt. Chemical name of common salt is sodium chloride and its formula is NaCl.   Methods to get common salt: 1)   By digging from mines. 2)   By pumping up the brine (salt solution) 3)   By evaporating the sea water. Class Assessment   1.    ----------------is added to-many foods to bring out the flavour. A.   Salt B.   Acid C. Base     2.    --------------- can also help to preserve food. A.   Salt B.   Acid C. Base     3.    Common salt formula is -------------. A.   Na B.   Cl C. NaCl     4. ...
Read more

What is Intertidal zone? Define Estuary.

Image
What is Intertidal zone? Define Estuary. I ntertidal zone : O ceans are divided into zones. The shallowest part of the ocean ecosystem is called the intertidal zone. The  intertidal zone  is the area where the ocean meets the land between high and low tides. Estuary : The boundary where freshwater feeds into salt water is called an estuary . An  estuary  is an area where a freshwater river or stream meets the ocean.
Read more

What is 'rate of reaction'? Measuring rates of reaction.

Image
What is 'rate of reaction'?  Measuring rates of reaction. Rate of reaction: The rate of a reaction tells us how quickly a chemical reaction happens. During a reaction, we can measure how much reactant is used up in a certain time. On the other hand, we might choose to measure now much product is formed in a certain time. Measuring rates of reaction: Measure how quickly one of the reactants is being used up.
Read more