Chemistry
A pure substance composed of only one type of atom
element
A push or pull on an object that may change the motion of the object
force
The type of plate boundary where two plates collide.
Convergent Boundary
An organism that is able to produce its own food through the process of photosynthesis.
Autotroph
Elements that are mostly dull, brittle, not malleable or ductile, and poor conductors of heat and electricity.
Nonmetals
Two or more atoms chemically combined
Molecule
Egual forces that do not cause a change in an objects motion
Balanced force
The type of plate boundary where two plates separate or divide.
Divergent Boundary
An organism that must consume other organisms in order to obtain energy
Heterotroph
Elements that have properties of both metals and nonmetals
Metalloids
elements that are mostly shiny, silver or gray in color, malleable, ductile, and good conductors of heat and electricity
Metals
Unequal forces that cause a change in an object’s motion – speed or direction.
Unbalanced Force
The type of plate boundary where two plates slide past each other
Transform Boundary
An organism whose cells contain a nucleus and other organelles.
Eukaryote
An object at rest will remain at rest and an object in motion will remain in motion until acted upon by an unbalanced force.
Newton’s 1st Law
A(n) _____________ mixture has a uniform composition and the same properties throughout.
Homogeneous
The frictional force air exerts against a moving object.
Air Resistance
The process in Earth’s mantle that scientists believe is driving the movement of the plates due to the heating and cooling of magma.
Convection Currents
An organism whose cells lack a nucleus and other organelles.
Prokaryote
The force of an object is equal to its mass multiplied by its acceleration.
Newton’s 2nd Law
The chemical formula for ammonia is NH3 . Describe how many atoms are present in FOUR molecules of methane?
16
Speed is a relationship between what two factors?
Distance and Time
A flat, disk-shaped galaxy with a central bulge and “arms” that extend outward.
Spiral Galaxy
A group of tissues that work together to perform a specific function.
Organ
The distance an object travels per unit of time
Speed