8th Grade Science Exam Post
Test Questions & Correct
Detailed Answers 2024-2025.
Graded A
A chemical reaction is always characterized by the ability to do which of
the following? – ANS Convert reactants into products A cool, dry air
mass originating in
Canada is described by which symbol? – ANS cP
A deposit of copper ore contains 1% copper. This statement describes
what characteristic of the ore deposit? – ANS Grade
A photon is released by the Atom after an electron does which of the
following? – ANS Moves from a higher to a lower energy level
A red slide would filter the most light of what color? – ANS Green
PG 1
,A sleek, aerodynamically design rock it reduces the amount of dragged
to a minimum and produces which type of air flow? – ANS Laminar
A tree ring analysis shows a time period when the rings were much
wider than any other time. What kind of climate was present during this
time period? – ANS Cool and wet
An equation is balances when what factors are the same? – ANS Number
of atoms of each element on each side
As we traveled through the ocean, what happens to the water pressure?
– ANS It increases at a constant rate
At convergent boundaries, which type of force moves plates towards
each other? – ANS Compressional
CFCs are different from other greenhouse gases for which of the
following reasons? – ANS They come only from human sources
PG 2
, Changes in atmospheric carbon dioxide that have occurred in the past 50
years are most strongly correlated with increase in which factor? – ANS
Burning of fossil fuels
Charles law shows the relationship between which two properties of a
gas? – ANS Temperature and volume
Choose the formula used to calculate force. – ANS Mass times
acceleration
Choose the other name for newtons first law of motion. – ANS Law of
inertia
Choose the term that is best defined as the tendency of an object to
resist changes in its motion; that is to stay still or keep moving with
constant speed unless some force acts upon it. – ANS Inertia Convection
currents
In which earth layer are thought to keep tectonic plates in motion? –
ANS Mantle
PG 3
Test Questions & Correct
Detailed Answers 2024-2025.
Graded A
A chemical reaction is always characterized by the ability to do which of
the following? – ANS Convert reactants into products A cool, dry air
mass originating in
Canada is described by which symbol? – ANS cP
A deposit of copper ore contains 1% copper. This statement describes
what characteristic of the ore deposit? – ANS Grade
A photon is released by the Atom after an electron does which of the
following? – ANS Moves from a higher to a lower energy level
A red slide would filter the most light of what color? – ANS Green
PG 1
,A sleek, aerodynamically design rock it reduces the amount of dragged
to a minimum and produces which type of air flow? – ANS Laminar
A tree ring analysis shows a time period when the rings were much
wider than any other time. What kind of climate was present during this
time period? – ANS Cool and wet
An equation is balances when what factors are the same? – ANS Number
of atoms of each element on each side
As we traveled through the ocean, what happens to the water pressure?
– ANS It increases at a constant rate
At convergent boundaries, which type of force moves plates towards
each other? – ANS Compressional
CFCs are different from other greenhouse gases for which of the
following reasons? – ANS They come only from human sources
PG 2
, Changes in atmospheric carbon dioxide that have occurred in the past 50
years are most strongly correlated with increase in which factor? – ANS
Burning of fossil fuels
Charles law shows the relationship between which two properties of a
gas? – ANS Temperature and volume
Choose the formula used to calculate force. – ANS Mass times
acceleration
Choose the other name for newtons first law of motion. – ANS Law of
inertia
Choose the term that is best defined as the tendency of an object to
resist changes in its motion; that is to stay still or keep moving with
constant speed unless some force acts upon it. – ANS Inertia Convection
currents
In which earth layer are thought to keep tectonic plates in motion? –
ANS Mantle
PG 3
