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Science Final

QuestionAnswer
What is the source of energy that drives the water cycle? The sun
Evaporation: Water/matter changes from a liquid to a gas because heat/energy of the sun is added
Condensation: Water/matter changes from a gas to a liquid because heat is removed.
Precipitation: The falling down (from clouds) of water in the form of rain, sleet, snow, or hail.
Runoff: Water “running off” of surfaces and returning to oceans, lakes, rivers, etc.
Warm Air Rises, less dense
Cool air sinks, most dense
Density? tells us how much “stuff” is packed into a certain amount of “space”.
What is the equation for density? mass/volume = density
What are the correct units for density? grams divided by cc = g/cc
What are the correct units for density? using volume and solid solid=cc - volume = mL
What is the density of water? 1.0 g/mL
What is the lithosphere? land/crust. What tectonic plates are made of.
What is the asthenosphere? Upper layer of the mantle which the crust/ lithosphere floats on.
What is a geological event? Any event that occurs on Earth because of plate movements.
What is a active Volcano Active Volcano: a volcano that erupts or will erupt some time soon.
What is a dormant volcano Dormant: a volcano that has not erupted for a long time.
solid Neatly and orderly very densely packed Vibrate in place
liquid Not as tightly packed less dense Move more freely
gas Least dense Move most Freely
landslide When gravity pulls rock and soil to roll downhill. If the land is wet it becomes a mudslide. Can cause a lot of damage to buildings, cars, and roads.
earthquake Fault: a break in the rocks where Earth’s crust can move. Two plates meet along the San Andreas Fault in California.
property Any characteristics that is used to describe an object.
hardness test A mineral's resistance to being scratched or broken, it is measured using Mohs scale; 1 = softest and 10 = hardest
streak test The powder left behind after a mineral is scraped across a porcelain plate.
luster How the light reflects off a mineral.
When tectonic plates spread apart magma comes to the surface and cools, creating new crust. This is called Answer: sea floor spreading/ mid ocean ridge
What process changes a sedimentary rock into a metamorphic rock? Heat and pressure
Define metamorphic rock: Rock that changes from one kind to another due to heat and pressure
Define sedimentary rock: Rock made up of broken pieces of older rock (sediments) Has layers and may contain fossils Found near water sources
Define igneous rock: Formed from cooled magma (intrusive) Formed from cooled lava (extrusive)
Name reasons for Earth’s seasons: Earth's tilt and earth's revolution
What keeps Earth in orbit around the sun? gravity
Why do we see different moon phases? We see different moon phases because the moon rotates around earth as earth is spinning
What moon phase is occurring during a lunar eclipse? Full moon
What moon phase is occurring during a solar eclipse? New moon
An object in motion will stay in motion. An object in rest will remain at rest unless acted upon by an outside force. Newton's 1st law
The higher the man holds the hammer, the higher the red ball will go. This is because he is using more force to accelerate the ball. Newton’s 2nd law: F=ma
The fire extinguisher pushes air east and Bart rolls away on the chair going west. The extinguisher pushes him an equal and opposite distance. Newton’s 3rd law: Action/Reaction
Will the box move more easily across the flat board or the track with rollers? Why? The one with track and rollers because it will keep rolling and moving.
What is amplitude? What is wavelength? Amplitude: height of the wave measures amount of energy the wave has. Wavelength:
What kind of waves are sound waves? Sound waves are mechanical/ longitudinal waves and need a medium to travel through.
Created by: user-1931773
 

 



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