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PMA Review 6th Grade

Total questions: 70

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
Which level of organization is the most complex?
a)
organism
b)
population
c)
community
d)
ecosystem
2.
Multiple organisms of the same species describes a
a)
organism
b)
population
c)
community
d)
ecosystem
3.
A forest full of many kinds of trees and grasses is an example of a
a)
group
b)
organism
c)
population
d)
community
4.
Which is an example of an organism?
a)
a beetle
b)
a lake
c)
a rock
d)
a shell
5.
Which is an example of a population?
a)
different kinds of bacteria
b)
A group of fish and sharks
c)
deer, bear, and rabbits
d)
A herd of cattle
6.
which is the correct order of the levels of organization from simple to complex?
a)
organism, population, community, ecosystem
b)
ecosystem, community, population, organism
7.
Which is the definition of a community
a)
multiple organisms of the same species
b)
all the living and nonliving things in an area
c)
a living thing
d)
multiple organisms of different species
8.

A hollow, sealed glass sphere contains sand, water, air, algae, and tiny brine shrimp. The sphere is a model ecosystem. Which of these is a biotic factor of this ecosystem?

a)

air

b)

algae

c)

sand

d)

water

9.

Refer to the diagram. Which list includes abiotic factors only?

a)

Items A, C, D

b)

Items B, C, E

c)

Items A, D

d)

Items A, B, C, D, E

10.

Which of these is a biotic factor in a river ecosystem?

a)

the types of microorganisms that live in the river water

b)

the amount of soil and other particles carried by the river

c)

the speed at which the river water flows toward the ocean

d)

the amount of rain that flows off the land and into the river

11.

In many desert ecosystems, days are hot and nights are cold. Water is scarce, so animals seek water wherever possible. The spines of a cactus are actually leaves adapted to conserve water. The cactus plants have also adapted to live in thin, sandy soil. Which of the following is a biotic component of a desert ecosystem?

a)

the thin, sandy soil

b)

the wide temperature range

c)

the scarcity of water

d)

the spiny cactus leaves

12.

Which of the following is a biotic factor in an ocean ecosystem?

a)

the salt content of the water

b)

the temperature of the water

c)

the fish in the water

d)

the oxygen in the water

13.

Drought, erosion, flood, and prolonged heat spells are examples of —

a)

communities

b)

biotic factors within an ecosystem which affect abiotic components

c)

populations

d)

abiotic changes within an ecosystem which can affect biotic factors

14.

What terms should replace X and Y in the table?

a)

elements; compounds

b)

abiotic; biotic

c)

microscopic; macroscopic

d)

natural; man-made

15.

Prokaryotic

a)

A cell that has NO nucleus

b)

A cell that has a nucleus

c)

An organism with one cell

d)

An organism with many cells

16.

Eukaryotic

a)

A cell that has NO nucleus

b)

A cell that has a nucleus

c)

An organism with one cell

d)

An organism with many cells

17.

Unicellular

a)

A cell that has NO nucleus

b)

A cell that has a nucleus

c)

An organism with one cell

d)

An organism with many cells

18.

Multicellular

a)

A cell that has NO nucleus

b)

A cell that has a nucleus

c)

An organism with one cell

d)

An organism with many cells

19.

Both prokaryotic and eukaryotic cells have a nucleus

a)

True

b)

False

20.

What kind of cell is bacteria if the organism is single-celled and does not contain a nucleus?

a)

Prokaryotic

b)

Eukaryotic

21.

What kind of cells do plants have?

a)

Prokaryotic

b)

Eukaryotic

22.

What kind of cells do people have?

a)

Prokaryotic

b)

Eukaryotic

23.

What kind of cells do animals have?

a)

Prokaryotic

b)

Eukaryotic

24.

What kind of cells do protista have?

a)

Prokaryotic

b)

Eukaryotic

25.

Prokaryotic cells are...

a)

Simple

b)

Complex

26.

Eukaryotic cells are...

a)

Simple

b)

Complex

27.

The Earth's ocean is mainly composed of what two elements?

a)

Potassium and Helium

b)

Oxygen and Hydrogen

c)

Boron and Neon

d)

Sulfur and Argon

28.

Unicellular organisms depend on just one cell for all of its functions?

a)

True

b)

False

29.

Multicellular organisms have specialized cells that perform different functions that collectively support the organism?

a)

True

b)

False

30.

Multicellular cells use many cells to function.

a)

True

b)

False

31.

In multicellular organisms, the cells specialize in certain functions.

a)

True

b)

False

32.

How many elements are found in the substance C8H18?

a)

1

b)

2

c)

3

d)

26

33.

How many elements are found in the chemical formula for the substance C6H12O6?

a)

1

b)

2

c)

3

d)

24

34.

How many elements are found in the chemical formula CH3CH2Br?

a)

3

b)

4

c)

5

d)

7

35.

Bacteria is an example of a(n) ______ organism.

a)

unicellular

b)

multicellular

c)

nonliving

d)

mammal

36.

An object undergoes a chemical change when it changes:

a)

shape, form, state of matter

b)

melting, odor, size

c)

color, burning, rusting

37.

Bubbles quickly appear and continue forming for 20 seconds and there are small amounts of the solid at the bottom of the liquid in the final observation.

a)

physical change

b)

chemical reaction

38.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
39.
Chemical or Physical?  Glass breaking into tiny shards
a)
Chemical Change
b)
Physical Change
40.
Physical or Chemical Change?  Iron rusts
a)
Physical Change
b)
Chemical Change
41.
Physical or Chemical Change?  Logs burning in a campfire.
a)
Physical Change
b)
Chemical Change
42.
Water freezing into ice is an example of a...
a)
Physical Change
b)
Chemical Change
43.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
44.

Leaves changing color in the fall?

a)

Physical change

b)

Chemical Change

45.

Silver spoon tarnishing is what type of change?

a)

Physical change

b)

Chemical change

46.

Breaking the Hydrogen-Oxygen bond in H2O is what type of change?

a)

Physical change

b)

Chemical change

47.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
48.
Which of the following is NOT an example of chemical change?
a)
sour milk
b)
burning wood
c)
breaking a pencil
d)
rust
49.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
50.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
51.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
52.

Elements in the shaded area can best be described as -

a)

Shiny and brittle

b)

Insulators

c)

Good conductors

53.
Look at the periodic table that is provided. Where would nonmetals be located? 
a)
to the left of the table 
b)
to the right of the table 
c)
in the zigzag line 
54.

Hydrogen (H) is located on the left side of the periodic table so it is a metal?

a)

True

b)

False

55.

Mushrooms are decomposers that gain energy through the breaking down of once-living organic matter. What kingdom are mushrooms classified in?

a)

Plantae

b)

Animalia

c)

Protista

d)

Fungi

56.
Describe what luster means
a)
How an object reflects light
b)
How soft an object is
c)
If an object floats
d)
If an object can be dug out of the earth.
57.
Which terms best describe heterotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
58.
Which terms best describe autotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
59.
a)
Autotroph
b)
Heterotroph
c)
Megalotroph
d)
Imaginaritroph
60.

BUNNY

a)

AUTOTROPH

b)

HETEROTROPH

c)

AUTOPHOTOTROPH

d)

NONE OF THE ABOVE

61.

Alfalfa Plant

a)

Autotroph

b)

Heterotroph

c)

Autophototroph

d)

None of the above

62.

Eukaryotic and prokaryotic cells both have DNA?

a)

True

b)

False

63.

Eukaryotic cells have DNA found in the nucleus while prokaryotic cells have

a)

no DNA

b)

free-floating DNA

c)

DNA found in the nucleus

64.

How do you count the number of elements in a chemical formula?

a)

Count the capital letters

b)

Count the lower case letters

c)

Count all the upper and lower case letters

65.

Which of the following is an element?

a)

Air

b)

Oxygen

c)

Water

d)

Sugar

66.

Is H2O an element or compound?

a)

Element

b)

Compound

67.

Is O2 an element or compound?

a)

Element

b)

Compound

68.

Is LiF an element or compound?

a)

Element

b)

Compound

69.

Is Au and element or compound?

a)

Element

b)

Compound

70.

Mosquito

a)

Autotroph

b)

Heterotroph

c)

Autophototroph

d)

None of the above

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