WorksheetsPhysical and Chemical Changes, States of Matter
Total questions: 23
Worksheet time: 12mins
If you take away enough heat from water, what will happen to the water?
It will begin to boil.
It will become a solid.
It will turn into a gas.
It will increase in weight.
What is an example of a chemical change?
paper being burned
metal being melted
a board being cut in half
water being boiled
Kim puts an ice cube in a beaker and it melts. This is a good example of
a physical change
a chemical change
an experiment
an analysis
What happens when water boils?
The solid water becomes a liquid.
The liquid water becomes a solid.
The liquid water becomes a gas.
Water vapor becomes liquid water.
Which statement is correct?
Physical change only changes the size.
Physical change only changes the color.
Physical changes begin and end with the same matter.
Physical changes change the matter into something totally different.
In a chemical change, what would happen if you mixed two substances?
They would form a new substance.
The two would not be able to mix.
They would be two separate substances.
Which of these is made of matter?
Energy
Light
Paper
Sound
Toni's class grows sugar crystals. Her teacher asks each student to sketch the shape of the sugar crystals. What will help Toni see the shape of the crystals?
a satellite
a magnifying glass
a pair of binoculars
An example of a solid turning into a liquid is (solid --> liquid)
water vapor turning into water
water turning into water vapor
water freezing into ice
ice melting into water
If you dissolved a lot of salt in some water in a large flat dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?
dry salt
water with no salt
the same salty water as before
nothing
Pancakes are made from liquid batter. After the pancakes are cooked, they are considered
a mixture and the ingredients can still be separated
not a mixture because the ingredients cannot be separated
not a mixture because they don't have syrup
An example of a liquid turning into a gas is (liquid --> gas)
a chocolate bar melting
an ice cream cone dripping
a stick of butter getting warm
steam escaping from a cup of hot chocolate
A different chemical substance is formed when (chemical change)
a cloth is cut
a cup breaks
a piece of paper burns
a piece of chalk breaks apart
David added a little baking soda to a beaker that contained vinegar. Bubbles started coming from the mixture as a gas was released. The gas was evidence that
the mixture was starting to boil
the air in the flask contracted
a chemical change took place
Mark is observing a burning candle. He notices that the candle wax makes a pool and dribbles down the side of the candle, where it hardens again. The candle wax has undergone
a physical change
a chemical change
the formation of a new substance
Which of the following is an example of melting?
stirring some sugar in water until you cannot see the sugar
heating a pan of water until all the water is gone
heating a block of ice until the ice turns to water
cooling water in the freezer until it becomes a solid
A s'more is a dessert made by placing a piece of chocolate and a toasted marshmallow between 2 graham crackers. The warmth of the marshmallow causes the chocolate to melt. What change occurs to the chocolate when it melts - physical or chemical change?
physical because it changes states but it is still chocolate
physical because it forms something new
chemical because it changes states but it is still chocolate
chemical because it forms something new
A s'more is a dessert made by placing a piece of chocolate and a toasted marshmallow between 2 graham crackers. The warmth of the marshmallow causes the chocolate to melt. If the marshmallow catches fire while being toasted, it turns black and does not taste sweet. What type of change happens to the marshmallow in this situation?
physical because it changes colors
physical because it changes flavor
chemical because part of it forms something new, a different color, and isn't as sweet
Cutting something is a
physical change
chemical change
Grilling meat is
a physical change
a chemical change
Which 2 tools would be best to separate this mixture?
Hands
Sifter
Magnet
Coffee Filter
Which 2 tools would be best to separate this mixture?
Hands
Sifter
Magnet
Coffee Filter
Which tool would be best to separate this mixture?
Hands
Sifter
Magnet
Coffee Filter
