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Grade 7 3rd Quarter Test Review
Test Description: Chemistry
Instructions: Answer all questions to get your test result.
1) Two or more substances not chemically combined is called a
A
element
B
atom
C
matter
D
mixture
2) The _________ shows the elements in a compund.
A
chemical formula
B
chemical property
C
symbol
D
compound
3) Anythng that has mass and takes up space
A
substance
B
element
C
chemical
D
matter
4) The basic particle from which all elements are made
A
matter
B
substance
C
mass
D
atom
5) A pure substance made of two or more elements that are combined chemically is called
A
compound
B
mixture
C
element
D
atom
6) An_____ is a substance that cannot be broken down into any other substance.
A
compound
B
element
C
mixture
D
atom
7) A ________ is a group of two or more atoms held together by chemical bonds.
A
compound
B
molecule
C
mixture
D
elelment
8) The force of attraction between two atoms is called a ______.
A
chemical bond
B
mixture
C
physical bond
D
molecule
9) A molecule is the smallest part of
A
an element
B
a mixture
C
a substance
D
a compound
10) Compounds are formed as a result of
A
chemical combination
B
distillation
C
physical combination
11) The simplest type of substance is a
A
atom
B
compound
C
molecule
D
element
12) Substances in a ________ keep their own properties.
A
mixture
B
atom
C
compound
D
molecule
13) Each element is represented by a ____ consisting of one or more letters.
A
atomic number
B
symbol
C
atomic mass
14) ________ is anything that has mass and takes up space.
A
chemistry
B
atom
C
matter
D
substance
15) ______ is the study of matter and how matter changes.
A
biology
B
geology
C
chemistry
16) A _____ is a single kind of matter that is pure.
A
substance
B
molecule
C
atom
17) A _______ is a characteristic of a substance that can be observed without changing in into another substance.
A
physical property
B
chemical property
18) A _____________ is a characteristic of a substance that describes its ability to change into different substances.
A
element
B
physical property
C
chemical property
19) The physical property that makes metal pots good for cooking is
A
flexibility
B
flammability
C
heat conductivity
20) The ability of iron to rust is a ______ property.
A
unknown
B
physical
C
chemical
*select an answer for all questions
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