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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
Flammability
B
Oxidation
C
Combustibility
D
Density
5) The temperature at which a liquid becomes a gas is the _______ point.
A
condensation
B
freezing
C
melting
D
boiling
6) The melting point of silver is a _________.
A
chemical property
B
chemical change
C
physical change
D
physical property
7) You can separate sugar from sand because sugar is ______ and sand is not.
A
ductile
B
malleable
C
acidic
D
soluable in water
8) An example of a chemical property is _________.
A
ability to react with oxygen
B
ability to be attracted by a magnet
C
boiling point
D
solubility
9) When a peeled banana turns black, it is a _________.
A
physical change
B
change of state
C
chemical change
D
thermal change
10) The change that is NOT a physical change is _______.
A
freezing
B
evaporating
C
dissolving
D
burning
11) An example of a chemical change is _______.
A
A magnet sticking to the refrigerator
B
frying a hamburger
C
mashing potatoes
D
dew dissapearing from the grass
12) Potassium has the atomic number of 19, with a mass of 39.098. What is the proton count for potassium?
A
NONE OF THE ABOVE
B
19
C
20
D
39
13) Potassium has the atomic number of 19, with a mass of 39.098. How many neutrons does potassium have?
A
None of the above
B
20
C
21
D
19
14) An element is made of only one kind of __________.
A
Isotope
B
Plastic
C
Atom
D
Compound
15) On the periodic table, metalloids are found ______.
A
on the right
B
between the metals and nonmetals
C
on the left
D
middle
16) _________ tells you the number of protons in the nucleus of each atom of an element.
A
Neutrons
B
Atomic mass
C
Electrons
D
Atomic number
17) ________ is formed when two or more substances come together but don't combine to form new substance.
A
Substance
B
Mixture
C
Electron
D
Mass
18) Elements in a _______________ are always combined in the same proportion by mass.
A
Solution
B
Mixture
C
Atom
D
Compound
19) A chemical change must have which of the following results?
A
The substance changes state.
B
Energy is released.
C
The substance changes its form or shape.
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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