A series of vibrations in the earths crust that is caused by a shift in the Earth’s plates.
What is an earthquake
100
the molten, fluid rock that issues from a volcano or volcanic vent.
What is lava
100
violently destructive windstorm occurring over land, esp. in the Middle West, and characterized by a long, funnel-shaped cloud extending toward the ground and made visible by condensation and debris.
What is a tornado
100
the air, water, minerals, organisms, and all other external factors surrounding and affecting a given organism at any time.
What is environment
100
a large mass of snow, ice, etc., detached from a mountain slope and sliding or falling suddenly downward.
What is an avalanche
200
the powdery residue of matter that remains after burning. Usually falls from the sky as a volcano erupts.
What is ash
200
air in natural motion, as that moving horizontally at any velocity along the earth's surface
What is wind
200
a serious event, especially one occurring suddenly and causing great loss of life, damage, or hardship, as a flood, airplane crash, or business failure.
What is disaster
200
a storm of the most intense severity.
What is hurricane
200
a vent in the earth's crust through which lava, steam, ashes, etc., are expelled.
What is a volcano
300
A sequence of feeding relationships between organisms in an ecosystem
What is a food chain
300
Facts or information
What is data
300
The pull of gravity on an object
What is weight
300
All of the members of one species found in a particular area at a particular time.
What is population
300
A substance that can transmit electricity or heat
What is a conductor
400
The end, close, or final part or an experiment
What is a conclusion
400
An instrument with magnifying lenses that is used to look closely at something that cannot be seen with the naked eye.
What is a microscope
400
An educated guess
What is hypothesis
400
one celled organisms that are circular in shape that appear signally or in chains.