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Science

Total questions: 136

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

_______ are the smallest units of life because they grow, reproduce, respond, and use energy.

a)

atoms

b)

elements

c)

cells

d)

all of the above

2.

Cells come from______.

a)

other preexisting cells

b)

cytoplasm

c)

organelles

d)

prokaryotes

3.

The cell theory states that_________

a)

cells come from cells

b)

all organisms are made of cells

c)

cells are the basic unit of structure and function for life

d)

all of the above

4.

________ is the scientist who saw small chambers when looking at cork, and named them “cells”.

a)

Newton

b)

Hooke

c)

Carson

d)

Manning

5.

The size of an organism is determined -

a)

by the size of the cells that make up the organism.

b)

by the number of cells that the organism has.

6.

The cell theory is a result of the work of one very important scientist name Hooke.

a)

True

b)

False

7.

A multicellular organism is made of

a)

one cell

b)

multiple cells

c)

unicellular cells

d)

there is no such thing as a "multicellular" organism

8.

One common feature of all cells is their ability to -

a)

work with other cells in a "unicellular" organism.

b)

reproduce themselves.

c)

be formed by spontaneous generation.

d)

exist without needing a cell membrane

9.

When a cell is ready to reproduce, it duplicates its contents, then divides into two similar (and sometimes exact duplicate) cells.

a)

True

b)

False

10.

Regardless of type, all cells

a)

have a cell membrane

b)

have cytoplasm

c)

can duplicate themselves by undergoing cell division

d)

all of the above

11.

The basic building blacks from which all living organisms are made are

a)

cells

b)

DNA

c)

chromosomes

d)

Amoeba

12.

A normal human cell contains how many chromosomes?

a)

16

b)

26

c)

46

d)

14

13.

It is true, not all cells have a true nucleus, but all cells must have some sort of

a)

DNA

b)

Cytoplasm

c)

Osmosis

d)

Call Wall

14.

True or False: During Mitosis the nucleus divides in two

a)

True

b)

False

15.

True or False: Interphase uses the most time for cell growth

a)

True

b)

False

16.

The the three main phases of cell division are, Interphase, Mitosis and

a)

cytoplasm

b)

cytokineses

c)

Cell Division

d)

Cell phones

17.

True or False: Cells Require oxygen to survive?

a)

True

b)

False

18.

During this phase, animal cell looks like it is being pinched in the middle.

a)

Interphase

b)

mitosis

c)

cytokineses

d)

Telephase

19.

Genes contain genetic

a)

Cells

b)

Traits

c)

Traitors

d)

Cytoplasm

20.

This part of the cells controls what moves in and out

a)

cell wall

b)

cell membrane

c)

Cytoplasm

d)

organelles

21.
The clear, jelly-like material in a cell that supports and protects the cell’s organelles.
a)
Cytoplasm
b)
Cell Membrane
c)
Nucleus
d)
Mitochondria
22.
The control center of the cell.
a)
Nucleus
b)
Nuclear Membrane
c)
Chloroplasts
d)
Golgi Aparatus
23.
Uses energy from the sun to make food for the plant.
a)
Cell Wall
b)
Cell Membrane
c)
Chloroplasts
d)
Vacuole
24.

Animal cells DO NOT have ...

a)

mitochondria

b)

nucleus

c)

cytoplasm

d)

chloroplasts

25.

What directs all the activities of the cell?

a)

cell wall

b)

cytoplasm

c)

nucleus

d)

cell membrane

26.
This is a rigid structure that give plant cells protection and support.
a)
cell membrane
b)
cell wall
c)
vacuole
d)
endoplasmic reticulum
27.

What part of a cell is "A" in the diagram?

a)

nucleus

b)

cytoplasm

c)

cell membrane

28.

Letter "B" is what part of a cell?

a)

cytoplasm

b)

cell membrane

c)

nucleus

29.

What part of a cell is "C" in the diagram?

a)

cell membrane

b)

nucleus

c)

cytoplasm

30.
Only in plant cells; on the outside; gives shape and support
a)
cell membrane
b)
cell wall
c)
ribosome
31.
Control center of the cell; gives the directions
a)
vacoule
b)
chloroplast
c)
nucleus
32.
Surrounds cell parts and controls what enters and leaves the cell
a)
Cytoplasm 
b)
Cell Wall
c)
Cell membrane
33.
Only in PLANT cells; makes food during photosynthesis
a)
mitochondria 
b)
cytoplasm
c)
cholorplasts
34.

What is the mitochondria?

a)

The power house of a house

b)

The power house of a cell

c)

The main function of a cell

d)

A basketball

35.
What is the main function of chloroplast?
a)
Mitosis
b)
Meiosis
c)
Translation
d)
Photosynthesis
36.

In what organelle of plant cells does photosynthesis occur?

a)

mitochondria

b)

centrioles

c)

chloroplast

d)

ribosomes

37.

A substance that is formed as the result of a chemical reaction is a __________________

a)

Product

b)

Reactant

c)

Starters

d)

Enders

38.

Which of the following is an example of a chemical change?

a)

water freezes to form ice

b)

sugar dissolves in water

c)

gasoline burns in a car engine

d)

a piece of metal expands when it is heated

39.

A change in the shape of an object is an example of _________________.

a)

a chemical change

b)

energy

c)

an endothermic change

d)

a physical change

40.
Which of the following is an example of a chemical change?
a)
rusting of a bicycle
b)
painting a house
c)
washing a dog
d)
tearing up a newspaper
41.

Which one shows that a chemical reaction has occurred?

a)

dissolving

b)

melting

c)

formation of a gas

d)

bending

42.
Which of the following IS a physical change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
43.
What type of change occurs when a new substance is formed that has different properties from the original substances?
a)
chemical change
b)
nuclear change
c)
physical change
d)
mutation
44.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
45.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
46.

What is the BEST definition of a chemical reaction?

a)

A change in matter that produces one or more NEW substances

b)

When two things combine and EXPLODE.

47.

What is a chemical reaction?

a)

a change in matter when the molecules rearrange to make new molecules

b)

a change in matter when matter changes its form or appearance

c)

a change in matter when the physical appearance changes

d)

a very boring change in matter

48.

This image shows a

a)

chemical reaction

b)

physical change

c)

musical change

d)

all of these answers are correct

49.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

all answers are correct

50.

The reactants in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

51.

The products in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

52.

When energy like heat and light are given off in a chemical reaction it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

ectomorphic

53.

When energy is absorbed and taken in during a chemical reaction it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

ectomorphic

54.

When the matter in a chemical reaction gets colder it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

endomorphic

55.

When the matter in a chemical reaction gets warmer it is called

a)

exothermic

b)

endothermic

c)

eccentric

d)

endomorphic

56.

Which is the correct description of photosynthesis

a)

Photosynthesis is a chemical reaction because the atoms of the molecules get rearranged to form new molecules

b)

Photosynthesis is a chemical reaction because the molecules stay the same before and after the change

c)

Photosynthesis is a physical change because nature makes it happen

d)

Photosynthesis is a physical change because the atoms stay the same

57.

Signs of a chemical change could be:

a)

a change in energy (temperature, light, sound)

b)

a precipitate forms (a solid forms from 2 liquids)

c)

formation of gas (bubbles)

d)

shocking change in color

e)

all of these answers are signs of chemical change

58.

The products are:

a)

molecular oxygen and 2 carbon

b)

2 carbon monoxide

c)

all of these are products

d)

all of these are reactants

59.

The reactants are:

a)

molecular oxygen and 2 carbon

b)

2 carbon monoxide

c)

all of these are products

d)

all of these are reactants

60.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
61.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

62.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

63.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
64.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
65.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
66.

Forces that have a net force of zero Newtons

a)

Balanced force

b)

Unbalanced force

67.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
68.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
69.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
70.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
71.
When forces are _________ the object DOES NOT move.
a)
unbalanced
b)
balanced
c)
heavy
d)
light
72.
When forces are ___________ the object will move.
a)
unbalanced
b)
balanced
c)
light
d)
gravity
73.
What is the net force of an object that is not moving?
a)
0 N
b)
100 N
c)
Upward force
d)
10 N
74.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
75.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
76.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
77.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun 
d)
A baseball that has been thrown to home plate.
78.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
79.

Which example would be a balanced force?

a)

Train moving at a constant speed in the same direction.

b)

A skier going down a hill.

c)

A basketball being passed to a teammate.

d)

An apple falling to the floor.

80.

It is defined as a push or a pull.

a)

Elements

b)

Force

c)

Friction

d)

Fracture

81.

It is defined as forces that are equal in magnitude.

a)

Unbalanced Forces

b)

Forces

c)

Balanced Forces

d)

Net force

82.

It is defined as forces that are not equal in magnitude.

a)

Unbalanced Forces

b)

Forces

c)

Balanced Forces

d)

Friction

83.

Use the picture as reference. If the force of the girl pushing is 30N, and the force of the boy who is also pushing is 30N, what is the net force?

a)

0N

b)

60N

c)

900N

d)

1N

84.

Use the picture as reference. If the force of the girl pushing is 20N, and the boy who is also pushing is 15N, what is the net force?

a)

5N

b)

300N

c)

35N

d)

1.33N

85.

If you apply an unbalanced force to an object at rest, what will happen to that object?

a)

the object will remain at rest.

b)

the object will move.

c)

The object will stay.

d)

None of the above.

86.

If all forces acting on an object have equal magnitudes, what is the state of that object?

a)

the object is at rest.

b)

the object is moving.

c)

The object is accelerating.

d)

None of the above.

87.

What operation do we use when forces acting on an object have the same direction?

a)

division

b)

multiplication

c)

subtraction

d)

addition

88.

What operation do we use when forces acting on an object have the opposite directions?

a)

division

b)

multiplication

c)

subtraction

d)

addition

89.

Beri and Ria are pulling a wagon, the force exerted by Beri is 45N and the force exerted by Ria is 12N. If the two girls are pulling on the same direction, what is the net force?

a)

540N

b)

3.75N

c)

33N

d)

57N

90.

The physical features of an organism that help it survive.

a)

Behavioral Adaptations

b)

Structural Adaptations

91.

The things animals do to survive.

a)

Behavioral Adaptations

b)

Structural Adaptations

92.

Leaf insects are shaped like a leaf so predators think they are real leaves.

a)

Behavioral Adaptation

b)

Structural Adaptation

93.

A beavers front teeth grow continuously to be able to chew wood.

a)

Behavioral Adaptation

b)

Structural Adaptation

94.

Leaf insects sway as they walk so that they look like leaves blowing in the wind.

a)

Behavioral Adaptation

b)

Structural Adaptation

95.

Frogs have long strong legs to hop quickly and far.

a)

Behavioral Adaptation

b)

Structural Adaptation

96.

Beavers claim their territory by building piles of mud and marking it with scent.

a)

Behavioral Adaptation

b)

Structural Adaptation

97.

A moose has long legs to walk through deep snow, over bushes, and wade through marshes.

a)

Behavioral Adaptation

b)

Structural Adaptation

98.

Male moose roar loudly to attract mates.

a)

Behavioral Adaptation

b)

Structural Adaptation

99.

A polar bear has very small ears to keep it from losing heat.

a)

Behavioral Adaptation

b)

Structural Adaptation

100.

A polar bear has thick rough pads on their feet to better walk on ice.

a)

Behavioral Adaptation

b)

Structural Adaptation

101.

Armadillos can roll up into a ball to protect their undersides.

a)

Behavioral Adaptation

b)

Structural Adaptation

102.

Birds have different beaks to help them survive in their habitat, which is a type of ___________ adaptation.

a)

behavioral

b)

physical

c)

learned

d)

migration

103.

Squirrels gather and store acorns for the winter, which is a ___________ adaptation.

a)

behavioral

b)

structural

c)

physical

d)

environmental

104.

Camouflage and mimicry are examples of ___________ adaptations.

a)

behavioral

b)

special

c)

physical

d)

predatory

105.

Hibernation, migration, and dormancy or all examples of ___________ adaptations.

a)

behavioral

b)

physical

c)

special

d)

environmental

106.

Both animals and people are born with ___________, like crying.

a)

instincts

b)

experiences

c)

adaptations

d)

dormancy

107.

___________ is when animals go into a deep sleep causing their bodies to slow down.

a)

Mimicry

b)

Migration

c)

Dormancy

d)

Hibernation

108.

___________ is a term used to describe animals that blend into their habitats.

a)

Mimicry

b)

Camouflage

c)

Adaptations

d)

Instincts

109.

A spider spinning a web is an example of an instinctive behavior.

a)

True

b)

False

110.

A cub will learn how to hunt by watching and copying its mother, which is a/an ___________ behavior.

a)

instinctive

b)

adaptive

c)

learned

d)

mimicry

111.

An opossum playing dead when it's in danger is an example of a ___________ adaptation.

a)

learned

b)

physical

c)

behavioral

d)

tricky

112.

___________ is when an organism (plant or animal) slows down its activity because its habitat becomes stressful.

a)

Migration

b)

Dormancy

c)

Hibernation

d)

Adaptation

113.

Animals that stay warm in cold habitats with thick fur body coverings is an example of a ___________ adaptation.

a)

behavioral

b)

environmental

c)

learned

d)

physical

114.

Adaptations help animals ___________.

a)

survive

b)

get food

c)

protect themselves

d)

all of the above

115.

Some animals use certain body parts to ___________ themselves or their babies.

a)

defend

b)

scare

c)

adapt

d)

raise

116.

___________ is when some animals travel long distances from one place to another, usually during seasonal changes.

a)

Hibernation

b)

Migration

c)

Dormancy

d)

Mimicry

117.

What does it mean to CAMOUFLAGE?

a)

when a weak animal copies a stronger animal to warn of predators

b)

when an animal is able to change colors to survive in an enviornment

c)

when an animal hibernates during the winter.

118.

What is HIBERNATION?

a)

when a weak animal copies stronger animal to warn off predators.

b)

when an animal hides in the cold winter and sleeps until the spring

c)

when a larger animal eats its prey

119.

Which is NOT a physical adaptation?

a)

a bear hibernating in the winter

b)

a bird with a sharp beak

c)

a fish with scales on its body

120.

Why would a bunnies fur be brown in the summer and white in the winter?

a)

The rabbit likes to change fur color

b)

The bunny learned it from his parents

c)

The changing of fur color help the bunny blend in with it's surroundings.

121.

Birds flying south 800 miles to find food and to escape cold winters is an example of

a)

Hibernating

b)

Migrating

c)

Camouflage

122.

A green snake blends in so predators can NOT find it. This is an example of?

a)

Hibernation

b)

Mimicry

c)

Migration

d)

Camouflauge

123.

What is Migration?

a)

When animals eat what they want

b)

When animals travel from one place to another to eat or get away from the cold weather.

c)

When animals are taught how to do something.

124.

According tho the graph, which animal travels the longest distance?

a)

Hummingbirds

b)

Snow Geese

c)

Seals

d)

Monarch Butterflies

125.
What does adaptation mean? 
a)
It's what helps a living thing grow and survive.
b)
a biome that gets very little rain
c)
a trait that it inherits from its parents
d)
an area that is covered mostly by water
126.

This animal is vertebrate or invertebrate?

a)

Invertebrate

b)

Vertebrate

127.

This animal is vertebrate or invertebrate?

a)

Vertebrate

b)

invertebrate

128.

This animal is vertebrate or invertebrate?

a)

Invertebrate

b)

Vertebrate

129.

This animal is vertebrate or invertebrate?

a)

Vertebrate

b)

Invertebrate

130.

This animal is vertebrate or invertebrate?

a)

Invertebrate

b)

Vertebrate

131.
All vertebrates have a ___________.
a)
last name
b)
tail
c)
backbone
d)
neck
132.
What is the major difference between vertebrates and invertebrates?
a)
Vertebrates are always smaller than invertebrates.
b)
Invertebrates always live in the water.
c)
Vertebrates have a backbone but invertebrates do not.
d)
Vertebrates and invertebrates are the same.
133.
How do adaptations help animals?
a)
To escape animals
b)
to hunt for food
c)
to survive in their habitats
d)
All of these are correct
134.
Why do animals use camouflage?
a)
To look pretty
b)
To stay safe
c)
To play Hide and Go Seek
d)
To eat food
135.

What is a behavioral adaptation?

a)

Something an animal does to survive

b)

How an animal looks

c)

A structure that an animal has

d)

A bear's thick fur

136.

What is a structural adaptation?

a)

Something an animal does to survive

b)

The physical features of an organism that help it survive

c)

A woodchuck hibernating in winter

d)

A function an animal has

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