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8th Grade Science EOG Review Part III
Test Description: Essential Standards EOG Review- North Carolina 8th Grade Science
Instructions: Answer all questions to get your test result.
1) What happens to water molecules during the boiling process?
A
They move faster and move farther apart as they lose heat
B
They move more slowly but move farther apart as they lose heat
C
They move faster and move farther apart as they absorb heat
D
They move faster and remain close together as they absorb heat
2) Elements with similar properties are arranged in periodic groups which are
A
the elements that were artificially made in a laboratory
B
the elements along the zigzag line of the periodic table
C
the left to right rows of the periodic table
D
the up and down columns of the periodic table
3) If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?
A
6 atoms of Carbon (C)
B
3 atoms of carbon (C)
C
12 atoms of Carbon (C)
D
2 atoms of Carbon (C)
4) What is a possible disadvantage of using flowing water to produce electricity?
A
reduced carbon dioxide emission
B
creates reservoirs
C
ecosystem damage and loss of land
D
only suitable for industrial use
5) Identify the statement below that is false?
A
nuclear energy produces radioactive wastes that are difficult to eliminate
B
geothermal energy is limited to areas over volcanically active ground
C
Wind energy causes no visual pollution, but is noisy and will not always work
D
Solar energy is the cheapest form of renewable energy you can use
6) Why is water from an aquifer more likely to be cleaner than water from other sources?
A
because it rises to the surface near the ocean
B
because it forms where fresh and salt water meet
C
because pollutants are filtered by rock and soil deep within Earth
D
because it receives water directly from precipitation
7) In which oceanic zone do clams and crabs survive by burrowing in the sand?
A
open ocean
B
deep ocean
C
intertidal
D
oceanic
8) If a body of water has high turbidity levels, what can most likely be concluded?
A
it is too hot to drink
B
it has a low pH
C
it contains a lot of chemicals
D
it is unsafe to drink
9) What would a scientist conclude if he found dinosaur fossils below mammal fossils in an undisturbed layer?
A
dinosaurs ate plants
B
dinosaurs lived on Earth before the mammals
C
dinosaurs were eaten by the mammals
D
dinosaurs and mammals lived at the same time.
10) How do scientists determine the relative ages of fossils in an undisturbed rock layer?
A
the law of superposition
B
the theory of continental drift
C
radioactive dating
D
Einstein's theory of relativity
*select an answer for all questions
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