NEW
Font size
Worksheets1.4 Changes in Matter
Total questions: 20
Worksheet time: 6mins
A physical change....
alters the form or appearance of matter but does not turn any substance in the matter into a different substance
changes the substance in the matter and produces one or more different substances.
creates and destroys matter
absorbs or releases energy in mater
which of the following is a physical change?
Physical or chemical change?
chemical
physical
both
is this physical or chemical?
both
physical
chemical
What is an endothermic change
a change which slows down the motion of the particles in the object
a change in which energy is absorbed
a change in which energy is released
a change which releases heat
What's an exothermic change?
It releases energy
It absorbs heat
It speeds up the motion of all the particles in the object
It absorbs energy
What is this?
exothermic change
none
endothermic change
What is this?
endothermic change
exothermic change
none
What's this
none
endothermic
exothermic
The freezing of water is_____
none
exothermic
endothermic
Where do endothermic and exothermic changes occur
during physical changes only
during physical and chemical changes
during chemical changes only
What's the law of conservation of mass
The fact that matter is neither created nor destroyed in any physical or chemical change
The fact that matter can be created and destroyed in any physical or chemical change
The fact that matter can only be created in any physical or chemical change
The fact that matter can only be destroyed in any physical or chemical change
does this follow the law of conservation of mass?
yes
no
A substance that undergoes a physical change is____ after the change
still the same substance
a different substance
combustion, electrolysis, oxidation, and tarnishing are examples of_____
physical changes
chemical changes
both
The use of electricity to break a compound into elements or simpler substances
tarnishing
oxidation
combustion
electrolysis
The slow combination of a bright metal with sulfur or another substance, producing a dark coating on the metal
oxidation
combustion
tarnishing
electrolysis
the combination of a substance with oxygen
combustion
electrolysis
oxidation
tarnishing
which of the following is this an example of?
oxidation
combustion
electrolysis
tarnishing
What is this an example of?
tarnishing
oxidation
combustion
electrolysis
