WorksheetsPHYSICAL/CHEMICAL CHANGE
Total questions: 15
Worksheet time: 5mins
What causes rust to form?
Reaction of iron to heat
Reaction of iron to force
Reaction of iron to oxygen
Reaction of iron to light
Which of the following will produce rust when wet?
a ball
a comb
a nail
a toothbrush
Which of the following is an example of physical change?
melting butter
cooking adobo
rusting of iron
burning wood
Which of the following is an example of chemical change?
melting ice
burning wood
crumpling paper
bending stick
What change took place when ice cubes are heated?
chemical change
physical change
both physical and chemical change
none of the above
Which of the following activities produce or form a new product?
When a material is burn, smoke is release together with the formation of ashes.
When an ice cube melts due to heat.
When you cut a piece of wood.
When you slice a pizza
All of the following are evidences of chemical change EXCEPT
Formation of gases
Release of heat
Formation of new products
Flexibility of materials
Which of these is an example of a physical change ?
An apple turning brown when exposed to air.
Spoiled food smelling bad in a trash can.
Large rocks getting crashed to be used as gravel.
Fireworks exploding in a bright flashes of color.
Which of these activities will result to a chemical change ?
Mar mixes sugar and water.
Elma sweeps the dust from the floor.
Beth pounds a piece of chalk into pieces.
Rosie uses baking powder when she bakes the cake.
Which shows a physical change ?
burning candle
chewing a piece of bread
burning a piece of paper
melting a piece of chocolate
Burning wood is a chemical change. Change in phase characterizes physical change.
both statements are true
both statements are false
the first statement is true while the second is false
the second statement is true while the first statement is false
When you fold a piece of paper , a hankie or a mat, their size also changed from bigger to smaller. The change of these materials in their appearance is called ______.
phase change
physical change
chemical change
temperature change
Which of the following examples show a chemical change ?
bending of paper clip
molding of clay
rusting of paper clip
sharpening of pencil
Which of the following objects is an example of physical change ?
rotten fruits
baking a cake
explosion of fireworks
a glass broken into pieces
Marie's family had a reunion and there were some leftovers. She observed that some of the foods had a change in color and smelled bad. What do you think happened to the food ?
the food got less
the food was fresh
the food was spoiled
the food got soft
