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