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WorksheetsYear eight Science
Total questions: 79
Worksheet time: 51mins
What is matter
Chemical bonds
Anything that has mass and takes up space
Anything that is relevant to chemical science
Anything that has a soul
The ability to be bent into a wire is...
(a)
All matter is made of
Matter
atoms
motion
time
What is H2O an example of
Matter type
An atom
A chemical formula
A word problem
What determines a substances state of matter?
the size
the temperature
the colour
the name of substance
All matter is in constant
motion
temperature
The faster the particles move, the _____ the temperature
Higher
Lower
What is density
Ability to pull into wire
Mass divided by volume
Reaction where a substance combines with
oxygen creating an explosion
Ability to hammer into a sheet
Soil is a
(a)
Helium is a
(a)
carbon dioxide is a
(a)
salad is a
(a)
sand and iron is a
(a)
sulfur dioxide is a
(a)
blood is a
(a)
water is a
(a)
bronze is a
(a)
air is a
(a)
H2SO4 is a
(a)
sugar water is a
(a)
salt is a
(a)
iron is a
(a)
oxygen is a
(a)
what kind of change is burning paper
(a)
what kind of changing is toasting marshmallows
(a)
what kind of change is frying an egg
(a)
what kind of change is filtering a mixture
(a)
what kind of change is melting ice
(a)
what kind of change is digesting food
(a)
what kind of change is grinding chalk into powder
(a)
what kind of change is hammering aluminium into sheets
(a)
particles
bump into each other
attract each other
eat each other
try to get away from each other
melting point is
temperature where a liquid turns into gas
temperature where a solid turns into a liquid
temperature where a liquid turns into a solid
temperature where a gas turns into liquid
boiling point is
temperature where a liquid turns into gas
temperature where a solid turns into a liquid
temperature where a liquid turns into a solid
temperature where a gas turns into liquid
condensation point is
temperature where a liquid turns into gas
temperature where a solid turns into a liquid
temperature where a liquid turns into a solid
temperature where a gas turns into liquid
freezing point is
temperature where a liquid turns into gas
temperature where a solid turns into a liquid
temperature where a liquid turns into a solid
temperature where a gas turns into liquid
the ability to be hammered into sheets is
(a)
combustion is
the scientific process for the great explosion that happened in the 1980s
Reaction where a substance combines with
oxygen creating an explosion
the process of disinfecting something
when a fire gets out of hand
elements contain
Contains only one type of atom
Contains two or more different atoms
chemically joined together
Contains different substances, which are not
joined together and can be separated
compounds contain
Contains only one type of atom
Contains two or more different atoms
chemically joined together
Contains different substances, which are not
joined together and can be separated
mixtures contain
Contains only one type of atom
Contains two or more different atoms
chemically joined together
Contains different substances, which are not
joined together and can be separated
In the process of gold panning, what is the first step
Gold is denser than water and other substances in soil
Lighter sediments float to the top
Gold sinks to bottom of pan
Lighter sediments spill out of the pan and the heavier gold is left on the bottom to
collect
In the process of gold panning, what is the second step
Gold is denser than water and other substances in soil
Lighter sediments float to the top
Gold sinks to bottom of pan
Lighter sediments spill out of the pan and the heavier gold is left on the bottom to
collect
In the process of gold panning, what is the third step
Gold is denser than water and other substances in soil
Lighter sediments float to the top
Gold sinks to bottom of pan
Lighter sediments spill out of the pan and the heavier gold is left on the bottom to
collect
In the process of gold panning, what is the fourth step
Gold is denser than water and other substances in soil
Lighter sediments float to the top
Gold sinks to bottom of pan
Lighter sediments spill out of the pan and the heavier gold is left on the bottom to
collect
Methane gas burns in oxygen to produce carbon dioxide
and water.
which is the reactant
Carbon dioxide, water
Oxygen, water
Methane, oxygen
Methane, water
Lead nitrate reacts with potassium iodide. This produces
a yellow solid called lead iodide and a clear liquid called
potassium nitrate
which is the reactant
Lead nitrate, potassium
iodide
Lead nitrate
Potassium nitrate, Lead nitrate
Lead iodide, potassium
nitrate
In a car, when the engine is started enough energy is
produced to combine nitrogen from the air with oxygen to
form nitrogen dioxide.
which is the product
Energy
Nitrogen dioxide
Oxygen dioxide
Nitrogen, oxygen
To make sodium chloride one possible method is to react
hydrochloric acid and sodium hydroxide together. This
reaction also produces water
which is the product
Hydrochloric acid,
sodium hydroxide
Sodium hydroxide, Water
Water, Hydrochloric acid
Sodium chloride, water
Often during an experiment, we find that a gas is
produced. An example of this is the production of hydrogen
when a metal, such as magnesium, reacts with an acid,
such as hydrochloric acid. In this reaction magnesium
chloride and hydrogen will be produced.
which is the reactant
Hydrogen, Magnesium
Magnesium,
hydrochloric acid
Hydrogen, magnesium
chloride
Magnesium chloride, hydrochloric acid
The colour of fireworks comes from the reactions of
different metals with oxygen. The production of magnesium
oxide gives a bright white colour. This comes from the
reaction between magnesium and oxygen. Heat energy is
needed for this to happen.
which is the product
Nitrogen dioxide
Magnesium oxide
Hydrochloric acid,
sodium hydroxide
Magnesium, oxygen
how do you find the mass in density calculation
volume times density
density minus mass
mass times volume
density divided by volume
how do you find the volume in density calculation
volume divided by density
density minus mass
mass divided by density
density divided by mass
how do you find the density in density calculation
volume divided by density
volume divided by mass
mass divided by volume
density divided by mass
blue colour
chemical property
physical property
density
chemical property
physical property
flammability
chemical property
physical property
flammability
chemical property
physical property
solubility
chemical property
physical property
reacts with acid
chemical property
physical property
supports combustion
chemical property
physical property
sour taste
chemical property
physical property
melting point
chemical property
physical property
reacts with water
chemical property
physical property
hardness
chemical property
physical property
boiling point
chemical property
physical property
lustre
chemical property
physical property
odor
chemical property
physical property
reacts with air
chemical property
physical property
what is a word equation
Lighter sediments spill out of the pan and the heavier gold is left on the bottom to
collect
Zn + HCl --> ZnCl + H 2
Zinc + hydrogen chloride --> zinc chloride + hydrogen
Hydrochloric acid,
sodium hydroxide
what is a chemical equation
Iron + water --> iron oxide + hydrogen
Magnesium,
hydrochloric acid
Methane gas burns in oxygen to produce carbon dioxide
and water.
Fe + H 2 O --> Fe 3 O 4 + H 2
definition of property
The measure of how easily a liquid flows
A mirror-like shine, often used to describe metals and minerals
Used to describe characteristics of a substance
Material breaks or crumbles when bent or when pressure is applied
Hardness is
Able to be stretched into a wire
Able to be beaten into another shape without breaking
Heat or electricity can move through
A measure of how easily a substance can be scratched
definition of elasticity
A measure of how easily a substance can be scratched
Materials which can be shaped when soft that then harden
Able to return to its original size and shape after being stretched or squashed
Heat or electricity can move through
define conductivity...
A measure of how easily a substance can be scratched
Used to describe characteristics of a substance
Heat or electricity can move through
The measure of how easily a liquid flows
define viscosity
Able to return to its original size and shape after being stretched or squashed
The measure of how easily a liquid flows
Able to be beaten into another shape without breaking
Able to be stretched into a wire
what is plasticity
Material breaks or crumbles when bent or when pressure is applied
Able to return to its original size and shape after being stretched or squashed
Materials which can be shaped when soft that then harden
Used to describe characteristics of a substance
Brittle is...
Material breaks or crumbles when bent or when pressure is applied
The measure of how easily a liquid flows
Able to be stretched into a wire
Used to describe characteristics of a substance
what is Lustre
Materials which can be shaped when soft that then harden
Used to describe characteristics of a substance
A measure of how easily a substance can be scratched
A mirror-like shine, often used to describe metals and minerals
