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Worksheets[8th] Exam 1
Total questions: 56
Worksheet time: 33mins
Define mass...
a measure of how much matter is in an object.
a measure of the force of gravity acting on an object.
the amount of space that matter occupies.
Define volume...
a measure of how much matter is in an object.
a measure of the force of gravity acting on an object.
the amount of space that matter occupies.
Define weight...
a measure of how much matter is in an object.
a measure of the force of gravity acting on an object.
the amount of space that matter occupies.
Define density...
to move back and forth slightly
the measurement of how much mass of a substance is contained in a given volume.
the change in state from a gas to a liquid
Define chemical change...
a change that alters the form or appearance of a material but does not make the material into another substance
a change in which one or more substances combine or break apart to form new substances.
Define physical change...
a change that alters the form or appearance of a material but does not make the material into another substance
a change in which one or more substances combine or break apart to form new substances.
basic particle from which all elements are made
atom
molecule
element
compound
substance made of two or more elements that are chemically combined is a set ratio
compound
chemical formula
molecule
atom
A _________ is made of two or more substances that are together in the same place but their atoms are NOT chemically bonded.
compound
mixture
substance
filtration
A type of mixture where you can see the different parts and they can easily be separated into their different parts.
atomic mixture
Compound mixture
Heterogeneous mixture
Homogeneous mixture
A type of mixture that you can't see the different parts.
Homogeneous mixture
Heterogeneous mixture
Compound
distillation
Iron objects can be separated from a mixture using a magnet.
evaporation
magnetic attraction
distillation
filtration
Solids can be separated from liquids by pouring the mixture through a filter.
magnetic attraction
evaporation
filtration
distillation
Liquids can be separated from each other by heating them up to the temperature at which one of the liquids boils. The liquid boils into a gas. Then the gas cools, forming the separated liquid.
evaporation
distillation
magnetic attraction
filtration
When left in the open air, liquid solutions can change to gas, leaving solid components behind.
Evaporation
distillation
filtration
magnetic attraction
A combination of two or more substances that can be easily separated in some physical way
mixture
solution
liquid
mass
Which of these are homogeneous mixtures?
peanuts and almonds mixed in a bowl
food dye mixed in water
a cup of tea and sugar
fruit salad
When Phillip analyzed an unknown substance X, he found that it contained only one kind of atom. Phillip was unable to convert the substance to a simpler one. What is substance X?
a compound
an element
a heterogeneous mixture
a homogeneous mixture
The amount of space an object occupies
Mass
Volume
Length
Pressure
The amount of matter an object contains.
Volume
Mass
Pressure
Length
Physical or chemical?
Chemical
Physical
Physical or Chemical?
Physical
Chemical
Physical or chemical?
Physical
Chemical
How would you classify this image?
homogeneous mixture
heterogeneous mixture
Blue color: Chemical or Physical Property
Reacts with acid: Chemical or Physical Property
Melting point: Chemical or Physical Property
Sour taste: Chemical or Physical Property
Reacts with water: Chemical or Physical Property
Boiling point: Chemical or Physical Property
Odour (smell): Chemical or Physical Property
Properties that can be observed without changing the identity of the substance
Properties that describe how a substance changes into a completely different substance
One unit to measure mass is
g/mL
grams (g)
milliliters (mL)
____ is the amount of space an object takes up.
Mass
Volume
An object with a high mass ____.
Looks Big
Feels Heavy
One unit to measure volume is
g/mL
grams (g)
milliliters (mL)
One tool to measure volume is:
Graduated Cylinder
Calculators
Scale
What key words, when present in a question about chemical reactions, might indicate a chemical change is occuring? Check all that apply.
Bubbling
Fizzing
Dissolving
Evaporating
6. Which of these processes is always exothermic?
A. evaporation
B. burning
C. insulation
D. melting
What is an example of endothermic process?
Chemical Ice Pack
Boiling Water
Bonfire
