Modified True/False
Indicate
whether the statement is true or false. If false, change the identified word or phrase to make the
statement true.
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1.
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Copper is used for wires because it is ductile. This is a chemical
property. _________________________
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2.
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Matter is made up of motionless particles.
_________________________
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3.
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Shape is a chemical property. _________________________
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4.
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Malleability is a physical property. _________________________
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5.
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Chemical properties can't be observed without changing the
substance. _________________________
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6.
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The density of a kilogram of iron is less than the density of 1 gram of
iron. _________________________
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7.
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Iron filings can be separated from sand by using a filter.
_________________________
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8.
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The ability to react with oxygen is a physical property.
_________________________
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9.
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Change of state is a physical change. _________________________
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10.
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In a physical change, the substance does not change its identity.
_________________________
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11.
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Carbon dioxide goes from a solid to a gas without becoming a liquid. This is a
chemical change. _________________________
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12.
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When a substance undergoes a chemical change, its identity does not
change. _________________________
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13.
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Mass is conserved in both physical and chemical changes.
_________________________
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14.
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When substances react, their mass remains the same after the reaction.
_________________________
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15.
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You cannot classify matter based on chemical properties.
_________________________
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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16.
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____ is a physical property.
a. | Oxidation | c. | Flammability | b. | Density | d. | Combustibility |
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17.
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Mass is a(n) ____ property.
a. | natural | c. | electrical | b. | chemical | d. | physical |
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18.
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The temperature at which a liquid becomes a gas is the ____ point.
a. | freezing | c. | condensation | b. | boiling | d. | melting |
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19.
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Density depends on ____.
a. | weight | c. | mass and volume | b. | mass | d. | volume |
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20.
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The melting point of silver is a ____.
a. | chemical change | c. | physical property | b. | chemical property | d. | physical change |
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21.
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You can separate sugar from sand because sugar is ____ and sand is not.
a. | malleable | c. | soluble in water | b. | ductile | d. | acidic |
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22.
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One approach to identifying something unknown is to use a ____.
a. | dichotomous key | c. | liquid layer | b. | lightstick | d. | control |
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23.
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A bonfire is an example of the property of ____.
a. | malleability | c. | solubility | b. | combustibility | d. | shape |
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24.
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An example of a chemical property is ____.
a. | ability to be attracted by a magnet | c. | boiling point | b. | solubility | d. | ability to react with oxygen |
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25.
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Titanium reacts less with oxygen than most metals do. This is a ____.
a. | chemical property | c. | chemical change | b. | physical change | d. | physical
property |
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26.
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Matter may be found in the plasma state in ____.
a. | blood | c. | rivers | b. | livers | d. | lightning |
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27.
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The change that is NOT a physical change is ____.
a. | freezing | c. | burning | b. | dissolving | d. | evaporating |
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28.
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When a peeled banana turns black, it is a ____.
a. | chemical change | c. | change of state | b. | physical change | d. | thermal change |
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29.
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An example of a chemical change is ____.
a. | a magnet sticking to the refrigerator | c. | mashing
potatoes | b. | dew disappearing from the grass | d. | frying a
hamburger |
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30.
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The mass of the products of a chemical reaction ____ the mass of the
reactants.
a. | is greater than | c. | is the same as | b. | is less than | d. | may be more or less
than |
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Completion
Complete each
statement.
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31.
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Scratching a silver teaspoon is a ____________________ change.
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32.
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The temperature at which water boils is ____________________.
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33.
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The mass of an apple would be measured in ____________________.
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34.
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The ____________________ of water at room temperature is 1
g/cm3.
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35.
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Classifying according to ____________________ properties can be difficult
because a substance must be changed to observe these properties.
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36.
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Sorting and separating are ways to classify matter using ____________________
properties.
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37.
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A substance's ____________________ properties predict how it will react
with other substances.
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38.
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Pieces of colored construction paper fade when left in the sunlight because the
dye has the ability to react with ____________________.
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39.
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A change in color is evidence of a ____________________ change.
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40.
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Color is a ____________________ property.
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41.
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A cake baking is an example of a ____________________ change.
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42.
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Flammability is a(n) ____________________ property.
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43.
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The four states of matter are solid, ____________________, gas, and
____________________.
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44.
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Where a sugar and water solution is evaporated, the sugar left behind has less
mass than the original solution. The missing mass is found in ____________________.
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Essay
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45.
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Explain how you could find the volume of an irregularly shaped piece of
aluminum.
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46.
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How does the energy of the particles differ in solids, liquids, and
gases?
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47.
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How can you separate a mixture of sand and bits of plastic foam?
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48.
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What physical property do water, plastic wrap, diamonds, and air have in
common?
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49.
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What chemical property does sliced fruit have? How do you know it has this
property?
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50.
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You need to paint iron lawn furniture that has been left outside. What property
of iron makes this necessary? If the paint is chipped, what happens?
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51.
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Is whipping cream a chemical or a physical change? Why?
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52.
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A dish of sugar and water solution is left in the Sun. After a few days, the
solution has disappeared and a white residue remains on the dish. Has a physical or chemical change
taken place? Explain.
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53.
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If you could choose, would you want to use chemical or physical changes to
separate two substances? Why?
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54.
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An antacid is placed in a clear solution. Bubbles form and the antacid
disappears. The mass of the final solution is less than the mass of the first solution and the metal.
Is this an exception to the law of conservation of mass? Explain.
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55.
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How could you prove that the law of conservation of mass is obeyed when mixing
two solutions?
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56.
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Explain how the law of conservation of mass applies in a chemical change.
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