Science EOG

What can be concluded correctly about the water in the stream?

• The presence of any living organisms indicates the water is safe to drink.

• The presence of many different types of invertebrates indicates the water is polluted.

• The presence of insects indicates that decomposition is taking place in the water.

• The presence of a variety of invertebrates indicates that the water is suitable for aquatic life.

Examine the diagram of a food web. A small population of eagles is introduced in the food web. The eagles feed on mice and reproduce at high rates. What is the most likely consequence of the introduction of eagles in the food web?

• The eagles will coexist with the hawks.

• The hawks will prey on grasshoppers.

• The eagles will compete with the hawks.

• The hawks will establish a mutualistic relationship with mice.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Use the diagram that shows a river basin with three parts labeled X, Y, and Z to answer the question.

Which option correctly identifies the parts of the river basin labeled X and Y?

• X: river; Y: tributary

• X: tributary; Y: estuary

• X: tributary; Y: river

• X: river; Y: estuary

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What process is occurring at the location labeled Z?

• condensation

• evaporation

• infiltration

• transpiration

Tags

NGSS.MS-ESS2-4

In 1911, a small population of 25 reindeer was introduced on Saint Paul Island. The graph shows the increase in the population of reindeer on the island between 1911 and 1940 with four lines (W, X, Y, and Z) that represent the estimated reindeer population by 1950. If the reindeer population overgrazed their food supply in 1940, which line would likely represent the estimated population of reindeer on the island by 1950?

• W

• X

• Y

• Z

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which are sources of freshwater on Earth’s surface?

• atmosphere, rivers, swamps, soil, and living things

• aquifers, atmosphere, estuaries, rivers, and soil

• rivers, aquifers, swamps, soil, and oceans

• oceans, atmosphere, rivers, soil, and living things

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Why is water classified as a compound?

• Because it is an element, which consists of only one type of atom.

• Because it is a substance, which can easily be separated.

• Because it is a substance composed of two or more kinds of atoms bonded together.

• Because it is an unevenly mixed solution, or a heterogeneous mixture.

Tags

NGSS.MS-PS1-1

The mass of the products in a chemical reaction is the same as the mass of the reactants in the reaction. Which law best describes this statement?

• The Law of Conservation of Angular Momentum

• The Law of Superposition

• The Law of Conservation of Matter

• The Law of Entropy

Tags

NGSS.MS-PS1-5

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

A scientist has a hypothesis that a large volcanic eruption caused a change in global temperature. Which information gained from ice cores is MOST useful in supporting the scientist's hypothesis?

• levels of dissolved oxygen

• identities of trace metals

• estimates of natural radioactivity

• amounts of atmospheric dust

Tags

NGSS.MS-ESS3-5