Science Final Review
Terms
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- Exosphere
- the outermost layer of earths atmposphere closest to outer space
- Ring of Fire
- Area along Pacific Ocean
- Chemical Formula
- a formula composed of symbols and numbers
- Chemical property
- a characteristic of a substance that permits it to change into a new substance
- State of Matter
- Solid Liquid or gas
- Troposphere
- the lowest layer of earths atmosphere
- Chemical change
- a change in materials into other new materials with different properties
- Plate tectonics
- the theory developed to explain how plates move
- Electron
- a negative charged atom that moves in paths around the nucleus
- Crust
- Earths outer layer which is firm and seems solid but is broken up into giant plates
- Physical property
- a characteristic of matter that can be obsereved by the senses
- Meteorologist
- A scientist who studies weather patterns to predict daily weather
- Force
- a push or pull
- Volcano
- A place where hot liquid magma is forced up through the surface by pressure
- Scientific Law
- a theory about the natrual world that has been tested many times and produces the same result
- Wind
- movement of air due to differences in air pressure
- Alfred Wegener
- German Scientist who proposed the theory of continental drift
- Outer Core
- the liquid layer inside earth
- Acceleration
- a change in speed or direction
- Global Warming
- An increase in temperatures all over the world
- Forecast
- a prediction about the weather
- Inertia
- Resistance to change in motion
- Average Speed
- describes the movement from an entire trip
- Epicenter
- the point at which the waves of an earthquak hit the surface of earth
- Newtons 3rd law of motion
- For every action force there is an equal reaction force
- Neutron
- Particle without a charge
- Earthquake
- the shaking of earth produced when sudden movement occurs along a fault and quickly releases energy
- Pollutants
- Haze Smoke and Dirt in the air
- Hurricane
- a large rotsting mass of warm moist air lasting several days that brings heavy rains and winds
- Seismograph
- an instrument that measures the wave magnitudes of an earthquake
- Richter scale
- Scale used to measure the amount of energy released by an earthquake
- gravity
- a pull that every object exerts on every object and pulls all things toward earth
- Plate
- A large section of earths crust
- weight
- a measure of how much earths gravity pulls down on an object
- Climate
- the pattern of weather that occurs in a particular area over many years
- Nucleus
- Controls most of cells activities
- Atmosphere
- The layer of air that surrounds earth
- Proton
- Positevley charged atom
- Newtons 1st Law of Motion
- An object at rest tends to stay at rest and a moving object tends to keep moving
- Focus
- Spot in earth where an earthquake starts
- Mercalli Scale
- A scale used to measure damage done by an earthquake
- Eye
- The calm center of a huricane
- Density
- A physical property of matter that can be found by dividing the mass by its volume
- Continental drift
- Wgeners idea of the movement of the continents over millions of years to there present spots
- Weather
- What is happening in the atmosphere right now
- newtons 2nd Law of Motion
- Acceleration depends on the object
- Convection Current
- Cycle in which hot magma is forced upward toward earths surface
- Mantle
- the thickest layer inside earth
- Physical change
- a change in the size shape or form
- SeaFloor Spreading
- The process that forms new ocean crust
- Front
- Places where airmasses cometogether
- Friction
- the push or pull that opposes motion wehn 2 touching surfacesare sliding on each other
- Inner core
- the solid inner most layer of earth
- Strtosphere
- the layer of earths atmosphere that contains a layer of gas called ozone
- mass
- the amount of matter in an object