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WorksheetsChemical Changes Practice: TEKS 6.6E
Total questions: 25
Worksheet time: 22mins
What is a physical change?
What is a physical change?
alters the form of but does change it's original properties.
alters the form but may or may not change orig. properties
alters form of but does not change it's original properties.
Which is an example of a chemical change?
distillation (purifying a liquid)
filtration (filtering something)
combustion (burning something)
freezing
What is a chemical change?
alters the form but does not change it's orig. properties.
alters the form may or may not change it's orig. properties.
alters the form but does change it's original properties.
Any change that keeps the original substance the same
Which is NOT an example of a physical change?
a gas forming
evaporating H₂O
tearing a piece of paper up
cutting your hand
What is the ability to do work or cause change?
temperature
energy
thermal energy
exothermic
Food coloring is dropped into water to give it color.
physical change
chemical change
In a fireworks show, the fireworks explode giving off light and heat.
physical change
chemical change
An egg spoils.
physical change
chemical change
Sugar dissolves in water.
physical change
chemical change
Pablo notices that ice cream melts when left out at room temperature. What is Pablo observing?
physical change
chemical change
The Law of Conservation of Mass is true for which types of changes?
Only physical changes
Only chemical changes
Neither physical or nor chemical changes
Both physical and chemical changes
Paper is burned & the mass of the ash is less than the mass of the orig. paper.How is this true
The ash has less volume than the paper
Some of the products of the reaction were given off as a gas
Some of the matter is destroyed during the reaction
Ash doesn't weight very much
A change that changes the form or looks of a material but does not make the material into a new substance.
physical change
chemical change
A change in which one or more substances combine or break apart to form a new substance.
physical change
chemical change
When a substances undergo a change that results in the formation of a new substance or substances this occurs.
chemical reaction
physical change
A principle stating that mass cannot be created nor destroyed. That means the mass of one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
conservation of chemical reactions
conservation of mass
saving the mass
If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a
Chemical change
Physical change
Both a physical and chemical change
Neither a physical or chemical change
Which is not a clue that could indicate a chemical change?
Change in color
Change in shape
Change in energy
Change in odor
What property stays the same during physical and chemical changes?
Density
Shape
Mass
Arrangement of particle
The statue of liberty turning green is an example of a _____________.
physical change
painting
chemical change
a statute become old
