WorksheetsPhysical change vs chemical change
Total questions: 23
Worksheet time: 14mins
Melting of Wax
Chemical Change
Physical Change
All of these
None of these
When a liquid becomes a solid, freezing occurs.
True
False
Expansion on heating and contraction on cooling of metals is a
Chemical Change
Physical Change
Irreversible change
Reversible change
Conversion of milk to curd involves (choose all that applies)
Change in color
Change in taste
Milk changes from liquid to semi-solid
Irreversible change
A chemical change may involve
Change in color only
Change in temperature only
Evolution of gas only
Any or all of the above
Which of the following is a chemical change?
Cooking of vegetables
Crumpling of paper
Cutting of fruits
Boiling of water
Which of the following is a physical change?
Rusting of iron
Melting of wax
Combustion of magnesium ribbon
Burning of candle
Which of the following is NOT an example of a physical change?
tearing paper
breaking a glass
cutting bread
burning wood
Gavin blew up a balloon using a bottle of vinegar and baking soda, which sign shows Gavin that his experiment was an example of a chemical change?
it produced a gas (bubbles)
it produced heat
it produced light
it produced a color
Which of the following is NOT a sign of a chemical change?
Creating light
Creating an odor
Breaking into smaller pieces
Creating heat
Baking Cookies
Physical Change
Chemical Change
Popping a Balloon
Physical Change
Chemical Change
Melting Crayons
Physical Change
Chemical Change
Rotting Food
Physical Change
Chemical Change
Identify the change shown in the picture.
Irreversible physical change
Irreversible chemical change
reversible physical change
reversible chemical change
What does the picture represent ?
physical change
chemical change
Which one is not the characteristics of a physical change ?
They are changes in the physical properties of substance.
They are often irreversible
Rearrangement of molecules take place
No new substances are formed
When a candle burns, both physical and chemical changes occurs.
True
False
