NC Science EOG

Which best describes uniformitarianism?

• The time it takes for erosion to occur has changed since Earth first formed.

• The movement of the continents no longer occurs because of changes in ocean currents.

• The processes that shape the Earth continue as they have since the Earth formed.

• The formation of rock layers has slowed because humans have altered the environment.

Tags

NGSS.MS-ESS2-4

The population density of marine life is denser along the shorelines of the ocean than farther out in the deep waters of the ocean.  Which statement provides the BEST reason for this situation?

• Ocean currents prevent many smaller marine organisms from living in deep water.

• The shallow waters have fewer predators.

• Coastal waters are less polluted than the deeper waters of the ocean.

• There are more nutrients in shallow waters.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is the best estimate of the melting point of Rubidium (Rb)?

• 25* C

• 40* C

• 75* C

• 184* C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is classified as an element?

• carbon dioxide

• iron

• vinegar

• water

Which best describes the sequence o the elements in Period 5 of the periodic table?

• highly reactive gases, relatively non reactive metals, metalloids, very nonreactive gases, nonreactive nonmetals

• highly reactive metals, relatively nonreactive metals, metalloids, reactive nonmentals, reactive gases

• nonreactive gases, metalloids, nonreactive metals, highly reactive metals, highly reactive gases

• nonreactive gases, nonreactive metals, highly reactive metals, metalloids, reactive nonmetals, reactive gases

Which statement is true about a chemical reaction?

• The physical states of the atoms in the reactants determine the products.

• Some of the atoms in the reactants will be a part of the products.

• The number of atoms in the reactants determines the products.

• All of the atoms in the reactants will be a part of the products.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• group 1

• group 2

• group 16

• group 18

Which is the best example of a chemical change?

• butter melting

• egg cooking

• paper tearing

• water evaporating

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

Tags

NGSS.MS-PS1-5

What would have the greatest long-term impact on reducing the amount of carbon dioxide in the air?

• planting trees around a farm

• cutting down trees around a farm

• increasing the number of livestock on a farm

• decreasing the number of livestock on a farm

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3