Quiz about 8th Grade Mock SSA Review

Question 1

Which two body systems work together to support the body and allow the body to move?

Accepted Answer

skeletal and muscular

Answer

circulatory and respiratory

Answer

digestive and nervous

Answer

circulatory and digestive

Question 2

In order to sustain life, all cells must...

Accepted Answer

All of the above

Answer

digest nutrients and water

Answer

excrete waste and fluids

Answer

must be able to maintain a homeostasis environment (aka cellular respiration and regulation)

Question 3

What is the role of gravity in the types of forces?

Accepted Answer

Gravity is a force that attracts objects towards each other.

Answer

Gravity is a force that repels objects from each other.

Answer

Gravity has no effect on objects.

Answer

Gravity only affects objects in space.

Question 4

Alisson does an experiment to see how long it takes for a teaspoon of sugar to dissolve in a cup of water. She does this three times and then asks Carpaur to copy her experiment to see if he gets similar result. What is Carpaur doing?

Accepted Answer

replication

Answer

repetition

Question 5

The Law of Superposition helps scientists to determine what?

Accepted Answer

The relative age of rock layers

Answer

The absolute age of rock layers

Answer

The age of fossils

Answer

the super powers of rocks

Question 6

How does the theory of evolution explain genetic variation within a species?

Accepted Answer

Genetic variation is a result of random mutations and natural selection.

Answer

Genetic variation is not explained by the theory of evolution.

Answer

Genetic variation is caused by environmental changes only.

Answer

Genetic variation is eliminated by natural selection.

Question 7

During photosynthesis, the energy from the sun is used to split water molecules into hydrogen and oxygen.

Accepted Answer

True

Answer

False

Question 8

Which of the following can be revised with new evidence?

Accepted Answer

Both

Answer

Theory

Answer

Law

Answer

Neither

Question 9

Which of the following best describes the law of conservation of mass?

Accepted Answer

Mass is conserved and remains constant in a closed system.

Answer

Mass can be created and destroyed in chemical reactions.

Answer

Mass increases with temperature.

Answer

Mass decreases with pressure.

Question 10

Identify the rock type: A volcano erupts and sends lava shooting into the air. This lava cools to form a(n) _____.

Accepted Answer

Igneous

Answer

Sedimentary

Answer

Metamorphic

Answer

Mineral

Question 11

The image shows a multicellular organism. This organism lives in water and can best be viewed using a microscope. It often reproduces asexually by budding, has no cell walls, and obtains energy by eating other organisms. Into what kingdom would you classify this organism?

Accepted Answer

Animalia

Answer

Fungi

Answer

Plantae

Answer

Protista

Question 12

The graph shows the distance a student walks down a hall over time. During which time interval was the student moving the fastest?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 13

What part is missing in the hierarchy?

Accepted Answer

tissue

Answer

cell

Answer

organ

Answer

organism

Question 14

Which of the following is a characteristic of plant cells that distinguishes them from animal cells?

Accepted Answer

Presence of a cell wall

Answer

Lack of a nucleus

Answer

Presence of mitochondria

Answer

Lack of a cell membrane

Question 15

Sir Isaac Newton was sitting under an apple tree one day when an apple hit him on the head. He wondered why the apple fell and eventually developed what became the law of gravity. Why is gravity considered a scientific law and not a scientific theory?

Accepted Answer

The law of gravity describes the attraction between particles in the universe.

Answer

The law of gravity explains why the particles attract each other.

Answer

Gravity is not a law, it is a theory

Answer

The law of gravity explains why the apple hit him on the head.

Question 16

Which of the following is a physical property that is independent of the sample size?

Accepted Answer

Density

Answer

Mass

Answer

Volume

Answer

Weight

Question 17

Ahmya wants to know if fish swim faster to Broadway music or the Blues. She has two fish tanks, with the same kind and number of fish in each. She plays Broadway music for one hour each day for one tank and the Blues for one hour each day for the other. She puts her findings in a scientific journal.

Name the dependent variable in this experiment.

Accepted Answer

How fast the fish swim

Answer

Length of music exposure

Answer

Music type

Answer

Type of fish

Question 18

Which best describes a compound?

Accepted Answer

made from two or more elements

Answer

found on the periodic table

Answer

a pure substance

Answer

only 100 in the world

Question 19

Which of the following could indicate that a chemical change took place?

Accepted Answer

All are correct

Answer

Change in color

Answer

Change in temperature

Answer

Formation of Gas

Question 20

The Gulf Stream is a current that brings warm ocean water from the south to the north.

Accepted Answer

convection

Answer

conduction

Answer

radiation

8th Grade Mock SSA Review

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