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WorksheetsCompounds and Mixtures
Total questions: 19
Worksheet time: 19mins
When two or more different atoms bond together they form a...
mixture
element
compound
molecule
Which of the following options is NOT true of sulfur?
it does not conduct heat or electricity
it is yellow
it is magnetic
it is a non-metal
in science, the word 'pure' describes...
water that does not have metal in it
something that is only one substance
a diamond that has not been cut
salt before it reacts with chlorine
mixtures can be...
liquids
gases
solids
all of the above
Mixtures that are metal are called...
compounds
alloys
metal mixtures
elements
steel is different to other alloys, because...
it is heavier than other alloys
it has an element in it that is not metal
it is not shiny
it has a low boiling point
which of the following is NOT a mixture
sugar water
mashed potatoes with cheese
salt
onion and tomato soup
When a metal and not metal form a mixture, what is the easiest way to separate them?
boiling the mixture
using a spoon to scoop out the metal
using a magnet
none of the above
When drop a lump of sugar into a glass of water it...
floats on top of the water
sinks to the bottom of the glass
dissolves in the water
forms a compound
when a solid dissolves in water it is said to be...
salt
concentrated
weak
soluble
solutes dissolve into water more easily if...
there is more water
the water is hot
the water is cold
there is less water
milk is not a solution because it....
tastes sweet
comes from cows
you can not see through it
we like to drink it warm
chromatography is...
the study of black and white photography
when you spill one liquid into another and it dissolves
when a food contains only one colour
used to study the dyes in food
a condenser is used to...
turn water into clouds
separate a mixture of food dye and water
help atoms bond together tightly
look at molecules
The variable you change is called...
the independent variable
the dependent variable
the control variable
the variable
Water is a...
solute
solvent
solution
mixture
The mass of the solution equals the mass of the solute plus the mass of the solvent. the mass does not change even though we can not longer see the solute. This is called...
thermoregulation
neutralization
conservation of mass
dissolution
When you plot a graph the independant always goes along the...
middle of the graph
horizontal (x) axis
vertical (y) axis
top of the graph
a compound and mixture are different because...
a compound is when two are more atoms are bonded together
each part of a mixture retains it's own properties
both of the above
none of the above
