WorksheetsPhysical and Chemical Changes
Total questions: 22
Worksheet time: 13mins
What is an example of a mixture that can be separated using a filter and a funnel?
Kool Aid
Coca Cola
salt water
sand and water mixture
What would be the best way to separate a mixture of salt and water?
density
filtering
evaporation
magnetic attraction
Substances in a mixture keep their own properties and can be separated from the mixture. Which substance can be easily separated by dissolving the mixture in water?
sand
salt
sawdust
iron fillings
A solution is a mixture that looks EXACTLY the same everywhere. These mixtures CANNOT be separated by a filter. Which of these COULD use a filter to separate the mixture?
A mixture of rocks and oils.
A mixture of salt and water.
A mixture of sugar and water.
A mixture of juice and water.
Gravel, sand, silt, and clay are particles that make up soil. What property would you use to separate the four particles?
color
minerals
shape
size
What must be added to water in order to change state from liquid to a gas?
more liquid
energy or heat
more oxygen atoms
more hydrogen atoms
Which is NOT a physical change in paper?
tearing paper
folding paper
burning paper
cutting paper
Which is a physical change?
rusting iron
burning paper
cracking an egg shell
reacting baking soda and vinegar
What is taking place on the surface of this water glass?
sublimation has occurred on the surface of the glass
water vapor in the air close to the glass has cooled and caused condensation
water is evaporating because of the increase in temperature
heat has caused the ice to melt and the glass is full and running over
When water changes state from solid to liquid to gas, which one DOES NOT occur?
chemical change
physical change
addition of energy
increase in temperature
To change liquid water into ice cubes you have to...
cause a chemical change
decrease the temperature (make it colder)
increase the temperature (make it hotter)
turn the water into something new
Which of these actions is a chemical change?
mixing sugar and water
crumpling a piece of paper
rusting of a metal pipe
crushing an aluminum can
Using a physical property how would you separate these jelly beans?
color
mass
length
texture
Jackson mixed some vinegar with baking soda. The mixture started to foam up and bubble. How did Jackson know a chemical reaction had occurred?
the formation of a gas
the color of the mixture
the smell of the vinegar
the volume of the mixture
A mixture is a combination of parts that retain their properties (continue to have). I can tell this is a mixture because I can...
eat all the parts
measure the amounts of the parts
separate the parts by their properties
identify the parts that make up the mixture
Which of these is NOT a chemical change?
burning a log
cooking an egg
rusting of a metal pipe
crushing an aluminum can
Chemical change is an example of
ripping paper
chopping wood
baking a cake
stretching a rubber band
Melanie and Ja'lan created a model volcano. They used baking soda and vinegar to produce bubbles and fizz making it look like an eruption. What evidence showed a chemical reaction?
change in color
gas production
change in color
light production
Copper wire and nitric acid reacted and produced a brown gas and a blue solution. This can't be reversed. What is the evidence of a chemical reaction?
ice forming
steam rising
the formation of a gas
a change in state from a solid to a liquid
What kind of change is the candy bar going through?
physical change
chemical change
mental change
weather change
What could you do to the paper to create a chemical change?
fold it
color it
tear it
burn it
How many school days are left after Spring Break?
30
32
35
40
