MCAS Review - Science Grade 8

Question 1

Which of physical properties would help him determine if this is true?

Accepted Answer

boiling point of liquid

Question 2

Using the picture, which of the processes caused the breakup and relocation of landmasses

Accepted Answer

tectonic plate motion

Question 3

Which of the following has a warmer average surface temperature than Earth?

Accepted Answer

Venus

Question 4

Most of the bacteria in a forest ecosystem would be best classified as what type of organism

Accepted Answer

decomposer

Question 5

How is a skin cell from a mouse similar to an amoeba?

Accepted Answer

both need energy

Question 6

In the ecosystem cycle pictured, what to the arrows most likely represent?

Accepted Answer

nutrients

Question 7

Which is an example of asexual reproduction?

Accepted Answer

trees send out rootlike extensions that produce new stems

Question 8

Which of the materials are direct products of photosynthesis

Accepted Answer

oxygen and sugar

Question 9

In which position would the Moon appear a a full moon as seen from Earth?

Accepted Answer

4

Question 10

Which statement best describes howthe use of interchangeable parts affects car manufacturing

Accepted Answer

the efficiency of manufacturing plants has increased

Question 11

Which statement best describes the role of gravity in the formation of stars?

Accepted Answer

gravity causes gas & dust particles to condense into spheres

Question 12

Based on the illustration of a bacterium, what can be concluded about the bacterium?

Accepted Answer

It is made up of one cell

Question 13

Which of the activities is performed by the marketing department of a manufacturing company

Accepted Answer

advertising

Question 14

Seafloor spreading provides evidence of which of the following Earth processes?

Accepted Answer

movement of crustal plates

Question 15

What is the most important function of the research and development dept of a large corporation

Accepted Answer

to create, test and improve products

Question 16

Which of the statements best describes the mass of a solid block of ice?

Accepted Answer

the amount of matter in the block

Question 17

A student is measuring the length of the box shown in the picture. Which ruler should she use

Accepted Answer

a ruler that is marked in millimeters

Question 18

Which of the following is the same for both compounds?

Accepted Answer

the types of atoms in each molecule

Question 19

Which best describes how the move particles when the temp of nitrous oxide is lowered to -91 C?

Accepted Answer

the speed of the particles decreases

Question 20

What season does the Southern Hemisphere experience when Earth & sun are in these positions?

Accepted Answer

winter

Question 21

If a solid object is taken from Earth into space, which measurement will change most?

Accepted Answer

weight

Question 22

A natural process is represented in the picture. What process is this?

Accepted Answer

photosynthesis

Question 23

Which is an example of a jar that is filled with a pure substance rather than with a mixture

Accepted Answer

a balloon filled with helium

Question 24

Dell is designing a new laptop that can't exceed a certain weight. Why would it have a limit?

Accepted Answer

to make it easier to transport the computer

Question 25

Warm air mass that rise over equator move Nor S. This is primarily the result of which process

Accepted Answer

convection

MCAS Review - Science Grade 8

Questions 25

MCAS Review - Science Grade 8

Questions 25