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Mid-Term Review 8th Grade Physical Science 3
Test Description: Use this to help you study for the Mid-Term Exam.
Instructions: Answer all questions to get your test result.
1) Which of these materials is not malleable?
A
Gold
B
Glass
C
Copper
D
Aluminum
2) In a chemical reaction,
A
new matter is created.
B
it is possible to end up with less matter than before.
C
matter is neither created nor destroyed.
D
it is possible to end up with more matter than before.
3) The periodic table is arranged in order by
A
alphabetically
B
atomic number
C
atomic mass
D
size of the atom
4) The Noble Gases tend be much more ______________ than other elements in the Periodic Table.
A
rare
B
reactive
C
massive
D
stable
5) How many milliliters in a liter?
A
.001
B
1000
C
100
D
1,000,000
6) When two different elements chemically bond, they are referred to as a(n)
A
ion
B
compound
C
double element
D
isotope
7) When scientists use placebos on one group and test drugs on another, the placebo group is the
A
control
B
dependent variable
C
independent variable
D
hypothesis
8) True or False: All scientific experiments follow exactly the same steps of the scientific method.
A
N/A
B
False
C
N/A
D
True
9) In a balanced chemical equation, the number of atoms on both sides of the equation __________.
A
is different because the compounds created are different.
B
has no relationship to each other.
C
are exactly the same.
D
varies by how much of each material is used.
10) Which of these materials is a heterogeneous mixture?
A
sand
B
steel
C
air
D
sea-water
*select an answer for all questions
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