8th Grade Ohio Science AIR Review

Question 1

Differences within a population because genes are not the same in each individual is known as

Accepted Answer

Genetic variation

Question 2

P waves can travel through anything, while S waves can only travel through _____?

Accepted Answer

Solids

Question 3

Where does deposition happen in a river?

Accepted Answer

On the inside bends of a river

Question 4

What do scientists use radiometric dating for?

Accepted Answer

To find the absolute age of rock layers and fossils

Question 5

Determining is rock layers and fossils are younger or older than one another is known as _____

Accepted Answer

Relative Dating

Question 6

Process where earth’s surface changes gradually over time and In a uniform way

Accepted Answer

Uniformitarianism

Question 7

The only way a recessive trait can show up.

Accepted Answer

If there are 2 recessive alleles present

Question 8

How do scientists study the interior of the Earth?

Accepted Answer

They use data from Seismic Waves

Question 9

Which two land forms or processes occur at an oceanic-oceanic divergent boundary?

Accepted Answer

Mid ocean ridge and earthquakes

Question 10

Which of the following are characteristics of the process of mitosis?

Accepted Answer

2 daughter cells created genetically identical to the parent

Question 11

Which of the following is NOT a solid layer of the Earth?

Accepted Answer

Outer Core

Question 12

Which of the following hills would have the least amount of erosion occur?

Accepted Answer

A hill with a lot of vegetation and low slope

Question 13

If organisms have homologous (same) structures what can that tell us about the organisms?

Accepted Answer

They have a common ancestor

Question 14

Which of the following is an example of a force being destructive to the earth’s surface?

Accepted Answer

Wind abrasion creates an arc from a large rock wall

Question 15

This process generated heat during Earth’s formation and is still a source of heat inside Earth

Accepted Answer

Radioactive Decay

Question 16

Which of the following is an example of a force being constructive to the earth’s surface?

Accepted Answer

A volcano erupts and creates new islands

Question 17

Landslides, rockfall, and mudslides are examples of erosion and deposition by which agent?

Accepted Answer

Mass Wasting

Question 18

The process where the organisms best adapted to an environment survive and reproduce

Accepted Answer

Natural Selection

Question 19

If Pink Fur is dominant over yellow fur, which are possible genotypes for pink fur?

Accepted Answer

Pp, PP

Question 20

How did the environment where these fossils were found change over time?

Accepted Answer

Changed from forest environment to water

Question 21

Which of the following is an advantage of sexual reproduction?

Accepted Answer

Genetic variation allows for adaptations and better survival

Question 22

New crust is created at a _____, and old crust is destroyed at a _____.

Accepted Answer

Mid ocean ridge, Subduction zone

Question 23

How old do scientists believe the earth is?

Accepted Answer

4.6 billion years

Question 24

Layers of earth in order from least to most dense

Accepted Answer

Crust, Mantle, Outer Core, Inner Core

Question 25

Fossils that are found over a large geographic area for a short period of time are known as __.

Accepted Answer

Index Fossils

Question 26

The punnett square shows codominance, what % of the offspring would have a black & white coat?

Accepted Answer

50%

Question 27

Law that states the rock layer on the bottom is oldest, and rock layer on top in the youngest.

Accepted Answer

Law of superposition

Question 28

Pink fur (E) is dominant over orange fur. What is the phenotype for someone with genotype ee?

Accepted Answer

Orange fur

Question 29

The different variations of a gene.

Accepted Answer

Alleles

Question 30

Magma in the mantle is heated by the core creating convection currents. In the convection cycle

Accepted Answer

Hot, less dense magma rises, while cool, denser magma sinks

Question 31

How is the formation of the solar system similar to the differentiation of Earth into layers?

Accepted Answer

In both processes, the densest material moved to the center

Question 32

Why does an oceanic plate subduct under a continental plate?

Accepted Answer

The oceanic plate is denser than the continental plate

Question 33

Which is a likely reason why a species would become extinct after a major environmental change?

Accepted Answer

Too few of a species born with a trait needed to survive

Question 34

Which of the following are two characteristics of the process of meiosis?

Accepted Answer

Parent cell goes through 2 divisions to create 4 sex cells

Question 35

Difference between the theory of plate tectonics and continental drift.

Accepted Answer

CD - Only the continents move, PT - Tectonic plates move

Question 36

Which of the following are pieces of evidence to prove the theory of plate tectonics?

Accepted Answer

All of the above

Question 37

If there is a hot spot under the island of Hawaii, which island would be the youngest?

Accepted Answer

Hawaii

Question 38

What two land forms or processes occur at a continental-oceanic convergent boundary?

Accepted Answer

Volcanic Arc and trench

Question 39

What color is the youngest ocean floor?

Accepted Answer

Red

Question 40

How do offspring genetically compare to their parent(s) in asexual reproduction?

Accepted Answer

They are genetically identical

Question 41

We are tracking a recessive trait through a pedigree, what is the genotype of a shaded shape?

Accepted Answer

aa

Question 42

Which of the following is an example of a uniformitarian process?

Accepted Answer

Erosion

8th Grade Ohio Science AIR Review

Questions 42

8th Grade Ohio Science AIR Review

Questions 42