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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
just over 200
B
about 4
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
element
D
proton
3) When two or more atoms join together, they form a
A
molecule
B
group
C
combination
D
model
4) Which of these is an example of a compound
A
hydrogen
B
calcium
C
iron
D
rust
5) sodium and chlorine combine to form
A
salt
B
carbon dioxide
C
water
D
bone
6) Lemonade is an example of a
A
solution
B
chemical
C
compound
D
element
7) The physical property that describes how much a substance will strectch or bend is
A
magnetism
B
hardness
C
elasticity
D
weight
8) An example of a physical property is
A
This substance is blue
B
This substance reacts with oxygen
C
This substance can combine with air
D
This substance can burn
9) Ash is a substance formed when
A
wood is burned
B
pyrite comes into contact with acid
C
a fruit turns moldy
D
food is digested
10) knowing about chemical properties can help in identifying
A
the nuclei of atoms
B
mixtures and solution
C
elements and compounds
D
protons and neutrons
11) An example of a change that is not a chemical change is
A
cucumbers tossed with lettuce for a salad
B
cut apples turning brown in the air
C
a green tomato turning red when it ripens
D
batter baked into a cake
12) iron atoms combine with oxygen to form
A
rust
B
ashes
C
fool's gold
D
carbon dioxide
13) ______________ has mass and takes up space
A
matter
B
elements
C
light
D
atoms
14) A combination of iron fillings and powdered sulfur is a
A
solution
B
mixture
C
element
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
carbon dioxide
D
water
17) A puddle of water is a
A
liquid
B
solid
C
gas
18) An ice cube is a
A
gas
B
solid
C
liquid
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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