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WorksheetsPhysical and Chemical Change
Total questions: 20
Worksheet time: 59mins
Crystallisation is a ____________________
Chemical Change
Physical Change
None of these
Both of these
Rusting of iron requires
only oxygen
only water
both air and water
none of these
Lime water turns milky when
carbon dioxide gas is passed through it
oxygen gas is passed through it
hydrogen gas is passed through it
none of these
The chemical name of baking soda is (a)
The process of depositing a thin layer of zinc on iron objects is called (a)
The presence of (a) in water makes the process of rust formation on ships faster.
Which of the following is NOT an example of a physical change?
crumpling paper
sharpening a pencil
clothes shrinking
sour milk
What does it mean when there is a physical change?
Matter has change from one substance into another.
Matter has change on the molecular level
A new substance has been formed.
Matter has changed size, shape or form.
What is an example of a physical change that happens inside your body?
Food being broken down by acids in your stomach.
Food being broken down into small pieces by your teeth.
Food being moved to your stomach.
Water being absorbed inside your large intestine.
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
cutting a piece of paper
folding a piece of paper
tearing a piece of paper
burning a piece of paper
What is an example of a chemical change that happens inside your body?
Food being broken down by acids in your stomach.
Food being broken down into small pieces by your teeth.
Food being moved to your stomach.
Water being absorbed inside your large intestine.
What is a chemical change?
Forming a new substance
When two or more substances combine to make a greater one
When two or more substances combine to make a new chemical substance
Combing substances
Which is an example of a chemical change?
Cutting paper
Digesting Food
Crumbling paper
Boiling water
Which of the following isn't a chemical change?
digesting food
boiling water
fireworks
baking bread
Which statement BEST describes why the water vapor in the air formed liquid water on the outside of the glass?
Characteristics of a substance that can be measured or observed
Chemical Properties
Physical Properties
Phases of chemistry
Change in color, production of light, production of heat, and production of a gas are clues that a ___ change has occurred.
chemical change
physical change
change in state of matter
