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6TH GRADE SCIENCE CHAPTER 2 TEST PART 2
Test Description: PART 2
Instructions: Answer all questions to get your test result.
1) Copper is used for wires because it is ductile. This is a chemical property.
A
False
B
True
2) Shape is a chemical property.
A
False
B
True
3) Carbon dioxide goes from solid to gas without becoming a liquid. This is a chemical change.
A
True
B
False
4) ____ is a physical property
A
Density
B
Flammability
C
Combustibility
D
Oxidation
5) The temperature at which a liquid becomes a gas is the _______ point.
A
boiling
B
freezing
C
melting
D
condensation
6) The melting point of silver is a _________.
A
physical change
B
chemical change
C
physical property
D
chemical property
7) You can separate sugar from sand because sugar is ______ and sand is not.
A
soluable in water
B
acidic
C
ductile
D
malleable
8) An example of a chemical property is _________.
A
solubility
B
ability to be attracted by a magnet
C
boiling point
D
ability to react with oxygen
9) When a peeled banana turns black, it is a _________.
A
thermal change
B
chemical change
C
change of state
D
physical change
10) The change that is NOT a physical change is _______.
A
evaporating
B
dissolving
C
burning
D
freezing
11) An example of a chemical change is _______.
A
mashing potatoes
B
A magnet sticking to the refrigerator
C
dew dissapearing from the grass
D
frying a hamburger
12) Potassium has the atomic number of 19, with a mass of 39.098. What is the proton count for potassium?
A
20
B
19
C
NONE OF THE ABOVE
D
39
13) Potassium has the atomic number of 19, with a mass of 39.098. How many neutrons does potassium have?
A
20
B
19
C
21
D
None of the above
14) An element is made of only one kind of __________.
A
Atom
B
Plastic
C
Compound
D
Isotope
15) On the periodic table, metalloids are found ______.
A
between the metals and nonmetals
B
on the right
C
on the left
D
middle
16) _________ tells you the number of protons in the nucleus of each atom of an element.
A
Atomic number
B
Atomic mass
C
Neutrons
D
Electrons
17) ________ is formed when two or more substances come together but don't combine to form new substance.
A
Electron
B
Mixture
C
Substance
D
Mass
18) Elements in a _______________ are always combined in the same proportion by mass.
A
Mixture
B
Atom
C
Solution
D
Compound
19) A chemical change must have which of the following results?
A
The substance changes its form or shape.
B
Energy is released.
C
The substance changes state.
D
A new substance with different properties forms.
20) Luster is a property that describes the shininess of a metal.
A
True
B
False
*select an answer for all questions
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