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6th Grade Science
Test Description: 1st semester exam
Instructions: Answer all questions to get your test result.
1) A substance that cannot be chemically broken down into simpler substances.
A
molecule
B
compound
C
element
D
pure substance
2) A substance formed when two or more chemical elements are chemically bonded together.
A
pure substance
B
compound
C
element
D
molecule
3) What is the symbol for hydrogen?
A
He
B
Ha
C
Hr
D
H
4) What is the symbol for Sodium?
A
So
B
Na
C
S
D
Sd
5) What does the chemical symbol S stand for?
A
sulfur
B
sulfide
C
sodium
D
selenium
6) What does the chemical symbol N stand for?
A
nickel
B
nitrogen
C
sodium
D
nobelium
7) Which of the following is a chemical formula?
A
S
B
NaCl
C
Al
D
Zn
8) Tell me which of the following represents chemical change.
A
paper tearing
B
logs burning
C
ice melting
D
glass shattering
9) Which of the following represents a physical change?
A
a banana rotting
B
water freezing
C
logs burning
D
fireworks exploding
10) Which of the following is a property of metal?
A
low density
B
conducts electricity
C
brittle
D
insulator
11) The layers of the Earth in order from outside to inside are:
A
mantle, crust, inner core, outer core
B
outer core, crust, mantle, inner core
C
inner core, outer core, mantle, crust
D
crust, mantle, outer core, inner core
12) About how many tectonic plates make up the Earths lithosphere?
A
8
B
214
C
14
D
48
13) What layer of the Earth slides on top of the Asthenosphere allowing the plates to move?
A
hydrosphere
B
mantle
C
lithosphere
D
atmosphere
14) At what type of boundary do plates collide?
A
transform
B
convergent
C
subduction
D
divergent
15) At what type of boundary do volcanoes form?
A
transform
B
convergent
C
divergent
D
subduction
16) At what type of boundary do Earthquakes form?
A
transform
B
divergent
C
subduction
D
convergent
17) At what type of boundary do plates move away from each other?
A
transform
B
divergent
C
subduction
D
convergent
18) What causes a tsunami?
A
plate tectonics
B
earthquakes
C
volcano
D
flooding
19) The smallest unit of all living things is the:
A
molecule
B
bacteria
C
cell
D
atom
20) Autotroph means that an organism:
A
makes its own food
B
moves
C
eats other organisms
D
lives underwater
*select an answer for all questions
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