6th Grade Science Question Preview (ID: 49154)
1st Semester Exam.
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A substance that cannot be chemically broken down into simpler substances.
a) compound
b) molecule
c) element
d) pure substance
A substance formed when two or more chemical elements are chemically bonded together.
a) compound
b) molecule
c) element
d) pure substance
What is the symbol for hydrogen?
a) He
b) H
c) Ha
d) Hr
What is the symbol for Sodium?
a) So
b) S
c) Na
d) Sd
What does the chemical symbol S stand for?
a) sulfur
b) sodium
c) selenium
d) sulfide
What does the chemical symbol N stand for?
a) nickel
b) sodium
c) nobelium
d) nitrogen
Which of the following is a chemical formula?
a) Al
b) NaCl
c) Zn
d) S
Tell me which of the following represents chemical change.
a) ice melting
b) logs burning
c) glass shattering
d) paper tearing
Which of the following represents a physical change?
a) logs burning
b) a banana rotting
c) fireworks exploding
d) water freezing
Which of the following is a property of metal?
a) conducts electricity
b) brittle
c) low density
d) insulator
The layers of the Earth in order from outside to inside are:
a) mantle, crust, inner core, outer core
b) crust, mantle, outer core, inner core
c) inner core, outer core, mantle, crust
d) outer core, crust, mantle, inner core
About how many tectonic plates make up the Earths lithosphere?
a) 214
b) 48
c) 14
d) 8
What layer of the Earth slides on top of the Asthenosphere allowing the plates to move?
a) lithosphere
b) hydrosphere
c) atmosphere
d) mantle
At what type of boundary do plates collide?
a) convergent
b) divergent
c) transform
d) subduction
At what type of boundary do volcanoes form?
a) convergent
b) divergent
c) transform
d) subduction
At what type of boundary do Earthquakes form?
a) convergent
b) divergent
c) transform
d) subduction
At what type of boundary do plates move away from each other?
a) convergent
b) divergent
c) transform
d) subduction
What causes a tsunami?
a) volcano
b) plate tectonics
c) earthquakes
d) flooding
The smallest unit of all living things is the:
a) atom
b) cell
c) molecule
d) bacteria
Autotroph means that an organism:
a) eats other organisms
b) moves
c) makes its own food
d) lives underwater
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