Shared Flashcard Set

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Earth, Soil, Our universe, and other things.
This is for my Quarter 3 science benchmark.
50
Science
6th Grade
04/14/2014

Additional Science Flashcards

 


 

Cards

Term
When plates push together, Convergent Boundaries are formed. When these boundaries come together, what is formed?
Definition
Mountain ranges
Term
What do convergent boundaries make in the oceans?
Definition
Extremely deep trenches!!!!!!
Term
What is created when plates move apart?
Definition

Divergent Boundaries.

 

And no, Tris and Tobias are not involved here.

Term
What can Divergent boundaries form?
Definition
Volcanoes and mid-ocean ridges.
Term
What is lava called before it reaches the Earth's surface?
Definition
It's called Magma.
Term
What forms when plates slide past each other horizontally?
Definition
Transform Boundaries are created!
Term
What are the 3 main types of rock?
Definition
Metamorphic, Igneous, and Sedimentary.
Term
How are igneous rocks formed?
Definition
They are created when lava cools and hardens.
Term
What is weathering?
Definition
When the weather changes the rock and breaks it down into smaller particles. There are two kinds. Chemical and physical.
Term
What is erosion??
Definition
Weathered rock and material that is moved by the weather.
Term
How is sedimentary rocked formed?
Definition
By minerals and material sitting in water for a very long time. While they're in the water, various things will put pressure on them and after being under these conditions for so long, they become rock.
Term
How are metamorphic rocks formed?
Definition
Heat and pressure within the Earth.
Term
What is the hottest layer of the Earth. (It can't be me. I'm hot of course, but I'm not a layer.)
Definition
The inner core. The further inside the Earth, the hotter it is.
Term
Define topsoil..
Definition
The top layer of soil. Mixture of humus, soil particles, and other minerals. FULL of nutrients.
Term
Define subsoil.
Definition
The soil directly under the topsoil.
Term
What is ground water?
Definition
Water retained beneath the surface of the Earth.
Term
Define waterlogged.
Definition
Saturated with or full of water.
Term
What is soil erosion?
Definition
Movement of soil components, usually by the weather. Can be natural or done by humans.
Term
What is a natural resource?
Definition
Things that you can find in nature, and use as well.
Term
What is soil conservation?
Definition
Management of soil to prevent it's destruction.
Term
What is crop rotation?
Definition
Varying successive crops in a definite order on the same ground, to control weeds and the depleting of soil.
Term
What is contour plowing?
Definition
It's where you plow along the curves of a slope.
Term
If the Earth were an apple, the crust would be...
Definition
The skin!
Term
What has to happen before the mantle becomes new crust?
Definition
It has to cool.
Term
What does subduction mean?
Definition
"Sliding under"
Term
What does gravity pull everything on our planet towards?
Definition
The inner core. Or just the core in general.
Term
ALL OF THE PHASES OF THE MOON! In order, GO!!!
Definition
New, waxing crescent, first quarter, waxing gibbous, full, waning gibbous, third quarter, waning crescent, new.
Term
What is the A Horizon?
Definition
Topsoil.
Term
What is the B Horizon?
Definition
Subsoil.
Term
What are the horizons?
Definition
Horizontal view of the layers of soil.
Term
What is sediment?
Definition
Solid material moved by wind and water that settles on the surface of land or the bottom of water.
Term
What is the C horizon?
Definition
Sand, gravel, and rocks.
Term
What is bedrock?
Definition
It is completely solid rock. It is under the C horizon.
Term
What is permeability?
Definition
The ability to take on a liquid.
Term
What is a mineral?
Definition
Natural, solid substance found in rocks. Each mineral has a specific chemical makeup.
Term
What is decomposition?
Definition
The state or process of rotting; decaying.
Term
What is depostion?
Definition
The amount of rock or soil that has been laid down in an area.
Term
What is the environment?
Definition
The area around you.
Term
What is the C horizon also called?
Definition
The Parent Rock.
Term
What is an ecosystem?
Definition
An environment made up of living things.
Term
How long does it take the moon to rotate on it's axis?
Definition
About 29 days.
Term
How long does it take the moon to revolve around the Earth?
Definition
27.32 days.
Term
Define rotate.
Definition
Move in a circle around it's axis.
Term
Define revolve
Definition
Move in a circle around a central axis.
Term
What is neap tide??
Definition
Tide in which the difference between the high and low tides are the least. They occur twice a month during the first and last quarter moons.
Term
How often do the tides change, usually??
Definition
Every six hours and 15 minutes or so..?
Term
What's a spring tide?
Definition
A tide just after a new or full moon, when there is the greatest difference between high and low water. It occurs twice per lunar cycle.
Term
What are high tides?
Definition
This is when the water is the highest. This happens twice a day.
Term
What are low tides?
Definition
When the tides are the lowest. This also happens twice a day.
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