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8th grade science MCAS review
Describe the mantle.
Describe the mantle.
hot liquid rock
This causes volcanoes and earthquakes.
This causes volcanoes and earthquakes.
plate tectonics ( moving plates/crust)
One natural process that wears down earth's surface.
One natural process that wears down earth's surface.
erosion or weathering
Draw the position of Earth, moon and sun during a lunar eclipse.
Draw the position of Earth, moon and sun during a lunar eclipse.
sun, earth, moon (in straight line)
The tilt of the earth on its axis and its revolution causes _____________.
The tilt of the earth on its axis and its revolution causes _____________.
seasons
The function of the digestive system is____________.
The function of the digestive system is____________.
To break down food
Two cell parts found in plant cells but not in animal cells.
Two cell parts found in plant cells but not in animal cells.
chloroplasts and cell wall
The term unicellular means________.
The term unicellular means________.
made of one cell
If an organism reproduces sexually, each parent contributes this much genetic material to their offspring.
If an organism reproduces sexually, each parent contributes this much genetic material to their offspring.
1/2
The idea that organisms best adapted to their environment will survive to reproduce.
The idea that organisms best adapted to their environment will survive to reproduce.
Natural selection
Which is smaller and more simple, an atom or a molecule?
Which is smaller and more simple, an atom or a molecule?
Atom
The difference between a physical change and a chemical change is_______.
The difference between a physical change and a chemical change is_______.
A chemical change produces new substances
The formula for speed is_____.
The formula for speed is_____.
distance/time
Stored energy is called_______.
Stored energy is called_______.
potential energy
Describe the particle movement during the liquid phase.
Describe the particle movement during the liquid phase.
particles in close contact, rolling over each other
List three tools and materials would be needed to build a birdhouse?
List three tools and materials would be needed to build a birdhouse?
tape measure, hammer, nails, wood
What is the role of a marketing department?
What is the role of a marketing department?
to advertise products
What effect does drag or friction have on cars, boats and airplanes?
What effect does drag or friction have on cars, boats and airplanes?
It slows them down
How is a wheelchair ramp helpful?
How is a wheelchair ramp helpful?
It is an adaptive or assistive device that makes it easier to get into buildings
What is a prototype?
What is a prototype?
a working model
If an organism is made of one cell and has a nucleus, which kingdom does it belong in?
If an organism is made of one cell and has a nucleus, which kingdom does it belong in?
Protista
What force is responsible for the shape of planets and for keeping them in their orbits?
What force is responsible for the shape of planets and for keeping them in their orbits?
gravity
Name at least two of Mr. Lawrence's daughters
Name at least two of Mr. Lawrence's daughters
Abby, Rachel, Julia, Lily
Which type of movement is responsible for earth's day?
Which type of movement is responsible for earth's day?
rotation
List the three types of heat transfer.
List the three types of heat transfer.
convection, conduction, radiation
Define evolution.
Define evolution.
gradual change in species over time
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Go To The Final Question
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