WorksheetsMatter & Energy Review
Total questions: 16
Worksheet time: 9mins
Name
Class
Date
1.
A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?
a)
Mn
b)
Magnesium
c)
Mg
d)
12
2.
The oceans are primarily composed of which two elements?
a)
carbon and hydrogen
b)
calcium and silicon
c)
hydrogen and oxygen
3.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
4.
In general, metals are _____.
a)
poor conductors of heat
b)
brittle
c)
poor conductors of electricity
d)
good conductors of heat
5.
Ms. Frizzle found an element that is not malleable, not ductile, and has no luster. What type of element might this be?
a)
Metalloid
b)
Nonmetal
c)
Metal
d)
Plasma
6.
An object has a volume of 10 cm3 and a mass of 40 g, what is it's density?
a)
400 g/ cm3
b)
40 g / cm3
c)
4 g/ cm3
d)
.4 g / cm3
7.
Examples are water (H2O) and carbon dioxide (CO2).
a)
elements
b)
mixtures
c)
compounds
d)
solutions
8.
A student mixes two clear liquids together. After a few minutes, a white powder can be seen settling on the bottom of the test tube. Which of the following is a conclusion that the student can draw based on these observations? The two clear liquids-
a)
have combined to produce a new substance.
b)
were pure substances before they were mixed.
c)
are toxic and should be handled with extreme caution.
d)
have been stored too long and are no longer good.
9.
Which of the following characteristics is shared by all chemical reactions?
a)
Produce a precipitate
b)
Show a color change
c)
Release heat energy
d)
Form new substances
10.
All of the following are evidence of a chemical change EXCEPT-
a)
change in state of matter
b)
formation of a gas
c)
color change
d)
precipitate forms
11.
Which of the following observations is the best indicator that a new substance has been formed?
a)
A solid has become a liquid.
b)
A substance has changed color.
c)
A solid has dissolved in a liquid.
d)
The volume of a substance increased.
12.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
13.
An empty beaker has a mass of 60 grams. When mercury is added to the beaker, it has a mass of 200 grams. What is the mass of the mercury?
a)
140 grams
b)
200 grams
c)
140 mL
d)
260 g
14.
Iron is a good conductor, malleable and magnetic. What type of element is Iron?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
15.
Which of the following properties is a physical property?
a)
magnetism
b)
reactivity with oxygen
c)
flammability
d)
non-reactive
16.
What characteristic defines all chemical changes?
a)
There is a change of state.
b)
Electricity is produced.
c)
A new material is formed.
d)
Bubbles are produced.
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