WorksheetsPhysical and Chemical Changes
Total questions: 35
Worksheet time: 21mins
A student mixes yellow powder with water. Which observation would support that a CHEMICAL change occurred?
The powder DISSOLVED in the water
The water turned the COLOR yellow
The bag's TEMPERATURE changed
The STATE OF MATTER changed
Which of the following examples provides evidence of a PHYSICAL change?
Wood is burned and releases ash and smoke
Iron rusts over time
When mixed, baking soda and vinegar form gas bubbles
Boiling water bubbles when heated
Which of the following options provides evidence of a CHEMICAL change?
Wood is burned releasing ash and smoke
Rocks separate when soil is sifted
Boiling water bubbles when heated
Salt dissolves in water
A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?
Physical change
Chemical change
No change
Which word matches the definition "two liquids make a solid"
pre-color
precipitation
precipitate
pretest
When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?
Physical change: state of matter
Chemical change: precipitate
Physical change: freezing
Chemical change: rust
Which of the following is true?
A physical change produces a new substance
A chemical change does not produce a new substance
A physical change can produce a precipitate
A chemical change can produce a precipitate
A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?
Cutting a piece of paper with scissors.
Folding a piece of paper into an airplane.
Ripping a piece of paper with their hands.
Burning a piece of paper with a match.
Why does the image best represent an example of a physical change?
The pencil can no longer be used.
The pencil is a different size.
The materials making up the pencil did not change.
The materials making up the pencil are different.
What evidence in the picture indicates that a chemical change occurred?
temperature change
odor
gas
Which process is an example of a physical change?
Burning
Rusting
Flattening
Decomposing
Which process is an example of a physical change?
Cutting Carrots into pieces and mixed in a salad
A peanut butter and jelly sandwich being digested
Sodium metal and water combining to form a compound and a gas
Sodium metal and chlorine gas combined to form table salt
Which process is an example if a physical change?
Water turns to steam when boiled
Carbon combines with oxygen to form carbon dioxide gas
Water breaks down into hydrogen and oxygen gases over time
Limestone breaks down into lime and carbon dioxide if heated
Which process is an example of a physical change?
paper burning to ash
dough being baked into bread
apple juice turning into vinegar
rock being crushed into gravel
Gallium is a metal. if you hold a solid piece in your hand, it will melt. This is a .
Absorption
Displacement
Physical Change
Chemical Change
Which type of change does the diagram show?
A change in mass
A physical change
A chemical change
A change in reaction
A cup of water is left outside for two days. When it was checked there was only half a cup left. What happened?
evaporation; chemical change
condensation; physical change
evaporation; physical change
condensation; chemical change
