EOG Review Science

A researcher analyzes the water in a stream and observes that the water contains many snails, crayfish, shrimp, caddisflies, mayflies, and stoneflies. These organisms are invertebrates that are used as bioindicators for bodies of water. 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.

Tags

NGSS.MS-LS2-2

Which best describes the seqence of the elements in Period 5 of the Periodic Table?

• Highly reacive gases, relatively nonreactive metals, reactive gases, nonreactive metals

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

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

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

Which supports the theory that the same mountains were once at the bottom of the ocean?

• There are underwater mountains on the ocean floors today.

• Freshwater rivers flow to the ocean

• Fossils of marine organisms are found on top of some mountains

• Moth mountains and ocean floors have similar minerals

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Which best describes uniformitarianism?

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

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

• The processes that shape the earth continue as they hace since Earth was first formed

• The formation of rock layers has slowed because of climate change.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS3-1

Which would most likely increase the genetic variation in a population of an organism?

• An increase in diseases

• A decrease in diseases

• An increase in mutations

• A decrease in mutations

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

Which best explains why mammals became dominant after the mass extinction of dinosaurs?

• They had traits that allowed them to adapt and change to the environment.

• They were bigger than dinosaurs.

• They were able to hibernate for a long time.

• They ate different foods than dinosaurs.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

If a bat, an alligator, and a bird evolved from a common ancestor, what can be concluded?

• They have similar anatomical structures

• They live in the same part of the world

• They are in the same biological classification

• They are able to survive changes in their environments

Tags

NGSS.MS-LS4-2

Which is a compound?

• hydrogen

• air

• sugar

• calcium

Tags

NGSS.MS-PS1-1

Two different liquids are poured together. Bubbles and a mist forms. A few minutes later, the solution is weighed, and the weight is less than before the liquids were mixed. Why?

• Atoms were destroyed in the mist.

• Atoms became lighter when they turned into a gas.

• Some atoms escaped into the air.

• Some of the atoms became brand new substances that weigh less.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The decomposition of carbonic acid changes into water and carbon dioxide. Which statement is true?

• The product is greater than the reactant

• The product is less than the reactant

• The product is equal to the reactant

• The product destroyed the reactants.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5