volcano parts
Types of volcanic eruption
Chemistry
Geology
100

Is a molten rock which is given off onto the surface of the Earth when a volcano erupts.

A. Magma     B. Lava        C. Crater      D. Conduit


Answer: B. Lava

100

Is a stream-driven eruption as the hot rocks

come in contact with water.

A. Phreatic or hydrothermal    C. Strombolian

B. Phreatomagmatic

Answer: A.  Phreatic or hydrothermal 

100
This type of matter has a definite volume but no definite shape... A: Solids, B: Liquids, C: Gases, D: Plasma
What is B: Liquids. Liquids have a definite volume but no definite shape. Because the intermolecular forces are weak in a liquid, it is able to change its shape to conform to its container.
100
This geologic formation may be found overhead if you are in a cave... A: stalactites B: stalagmites C: mightymites D: termites
What is A: stalactites. The ones growing downward are stalactites, the ones growing upward are stalagmites. Stalactites are formed by the deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions.
200

Is the mouth of the volcano which is a funnel-shaped or bowl?shaped hollow at the top of the vent from where magma, ash and gas comes out.

A. Conduit       B. Base         C. Summit       D. Crater

 Answer: D. CRATER


200

A periodic, weak to violent eruption characterized by fountain lava, just like the Irazu Volcano in Costa Rica.

A. Vulcanian    B. Strombolian     C. Phreatomagmatic

 Answer: B  Strombolian

200
This English chemist and physicist discovered hydrogen. A: Sir William Crookes, B: Henry Cavendish, C: Dorothy Hodgkin, D: Bernard Shaw
Who is B: Henry Cavendish. This English chemist and physicist not only discovered hydrogen, but also determined the mass of the Earth.
200
This type of water weighs the most... A: seawater B: distilled water C: tap water D: none - They all have the same weight.
What is A: sea water. It is loaded with mineral salts and weighs about a pound and a half more per cubic foot than fresh water at the same temperature.
300

Is a region beneath the vent of a volcano where molten rock or magma is deposited or stored before eruption.

 A. Magma chamber   B. Magma   C. Summit

 Answer: A. Magma chamber

300

Is characterized by tall eruption columns that reach up to 20 km high with pyroclastic flow and ash fall tephra like that of Paricutin Volcano in Mexico.

A. Vulcanian     B. Phreatomagmatic  C. Strombolian.

 Answer: A  Vulcanian

300
Matter that does not enter chemical reactions is described as this... A: Inhibited, B: Inert, C: Grounded, D: Radioactive
What is B: Inert. Inert matter does not enter chemical reactions.
300
This is the hardest naturally occurring substance... A: emerald B: tourmaline C: diamond D: corrundum
What is C: Diamond. Diamond is also one of the most valuable natural substances. Diamonds are crystals formed almost entirely of carbon. Because of its hardness, the diamond is the most enduring of all gemstones. They are among the most costly jewels in the world, partly because they are rare, Only four important diamond fields have been found - in Africa, South America, India, and the Soviet Union.
400

 Base is lower outer part of the volcano.

A. Summit         B. Slope            C. Base

 Answer: C. Base

400

 Is excessively explosive type

of eruption of gas and pyroclastic

materials, like in Pinatubo Volcano in Zambales.

A. Stombolian   B. Vulcanian    C. Plinian

 Answer: C. Plinian

400
These substances control the rates of chemical reactions... A: Reactants, B: Catalysts, C: Isotopes, D: Cathodes
What is B: Catalysts. Catalysts are substances that control the rates of chemical reactions.
400
The largest hailstone recorded was closest to this object in diameter... A: basketball B: softball C: tennis ball D: golf ball
What is A: basketball. The largest hailstone ever recorded was 17.5 inches in diameter - bigger than a basketball.
500

 Is a of mixtures of rock, minerals, glass particles and gases expelled or pushed out of the volcano during volcanic eruption.

A. Gas cloud      B. Ash      C. Ash and gas cloud

 Answer: C. Ash and gas cloud

500

Is a violent eruption due to the contact between water and magma.

A. Plinian       B. Strombolian     C. Phreatomagmatic

 

 Answer:  C. Phreatomagmatic

500
These are microscopic spheres of 60 atoms of pure carbon in a spherelike structure that resembles a geodesic dome... A: Hydrocarbons, B: Lipids, C: Crystals, D: Buckyballs
What is D: Buckyballs. "Buckyballs" are microscopic spheres of 60 atoms of pure carbon in a spherelike structure that resembles a geodosic dome. Also called fullerenes or buckminsterfullerenes, they were named after R. Buckminster Fuller who invented the geodosic dome. Buckyballs are of great interest to scientists because they contain a cavity large enough to hold other elements, even whole molecules. Once an element has been deposited into the cavity, it cannot emerge without being heated to high temperatures. This technology may someday be used to deliver medication to specific locations within the body.
500
The first Earth Day was celebrated in this year... A: 1950 B: 1960 C: 1970 D: 1980
What is C: 1970. The first Earth Day was celebrated on April 22, 1970, and has been celebrated each year following on April 22nd. The original purpose of Earth Day was to inspire people to think and act more environmentally. Earth Day falls on or around the birthdays of several environmental spokespersons.