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Sci 8th EOG Release Test #41 - 60

Authored by Lynne Jones

Science

8th Grade

Sci 8th EOG Release Test #41 - 60
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chlorine has 7 valence electrons.  With what group of elements will chlorine most readily bond?

group 1

group 2

group 16

group 18

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the best example of a chemical change?

butter melting

egg cooking

paper tearing

water evaporating

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which chemical equation best represents the Law of Conservation of Mass?

H  +  O  →  H2O

H2  +  O2  →  H2O

2H2  +  O2  →  2H2O

H2  +  O2  →  2H2O2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is most likely a major concern associated with burning fossil fuels?

Burning fossils fuels can pollute the oceans.

Burning fossils fuels can remove harmful chemicals from precipitation.

Burning fossils fuels can remove carbon dioxide from the atmosphere.

Burning fossils fuels can produce smog, which can cause respiratory illnesses.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which action shows concern for the environment with regards to the resources of the oceans?

developing technology which will allow for an increases in fish harvesting

allowing factories to release untreated wastewater into the oceans

filling in oceanfront wetlands in order to extend beachfront properties

setting limits on fish harvesting in the oceans

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect does the water cycle have on the total amount of water on Earth?

The total amount of waer on Earth is constantly increasing.

The total amount of water on Earth is constantly decreasing.

The total amount of water on Earth remains relatively constant.

The total amount of water on Earth changes due to periods of global warming and cooling.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which characteristics of water quality provides the most information regarding the health of a water system?

clarity

temperature

concentration of heavy metals

presence of indicator species

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