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5th Grade- Unit B, Chapter 1
Test Description: Classifying matter
Instructions: Answer all questions to get your test result.
1) The number of elements are
A
about 4
B
about 100
C
about 50
D
just over 200
2) The particle in the atom that is found outside the nucleus is the
A
element
B
proton
C
nucleus
D
electron
3) When two or more atoms join together, they form a
A
molecule
B
model
C
group
D
combination
4) Which of these is an example of a compound
A
iron
B
hydrogen
C
calcium
D
rust
5) sodium and chlorine combine to form
A
bone
B
carbon dioxide
C
salt
D
water
6) Lemonade is an example of a
A
compound
B
chemical
C
element
D
solution
7) The physical property that describes how much a substance will strectch or bend is
A
weight
B
elasticity
C
magnetism
D
hardness
8) An example of a physical property is
A
This substance can burn
B
This substance is blue
C
This substance can combine with air
D
This substance reacts with oxygen
9) Ash is a substance formed when
A
a fruit turns moldy
B
food is digested
C
pyrite comes into contact with acid
D
wood is burned
10) knowing about chemical properties can help in identifying
A
elements and compounds
B
protons and neutrons
C
the nuclei of atoms
D
mixtures and solution
11) An example of a change that is not a chemical change is
A
cucumbers tossed with lettuce for a salad
B
a green tomato turning red when it ripens
C
cut apples turning brown in the air
D
batter baked into a cake
12) iron atoms combine with oxygen to form
A
ashes
B
carbon dioxide
C
rust
D
fool's gold
13) ______________ has mass and takes up space
A
matter
B
light
C
atoms
D
elements
14) A combination of iron fillings and powdered sulfur is a
A
mixture
B
solution
C
element
D
compound
15) rust results when oxygen combines with
A
hydrogen
B
iron
C
gold
D
helium
16) H2O is the chemical formula for
A
water
B
table salt
C
carbon dioxide
D
hydrogen
17) A puddle of water is a
A
gas
B
liquid
C
solid
18) An ice cube is a
A
gas
B
liquid
C
solid
19) which of these is not found in the nucleus of an atom
A
proton
B
neutron
C
electron
20) electrons have this kind of charge
A
no charge
B
positive
C
negative
*select an answer for all questions
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