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6th Grade Final Exam Review 2023

Total questions: 176

Worksheet time: 29hrs 20mins

Name
Class
Date
1.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

only if you don't have corrective glasses

d)

any time chemicals, heat, or glassware is used

2.

If you do not understand a direction or part of a lab procedure, you should

a)

figure it out as you do the lab

b)

try several methods until something works

c)

ask the instructor before proceeding

d)

skip it and go on to the next part

3.

Horseplay or practical jokes in the laboratory are

a)

always against the rules

b)

okay

c)

not dangerous

d)

okay if you are working alone

4.

When you finish working with chemicals, biological specimens, and other lab substances, always

a)

treat your hands with skin lotion

b)

wash your hands thoroughly with soap and water

c)

wipe your hands on a towel

d)

wipe your hands on your clothes

5.
When heating a substance in a test tube, the test tube should be pointed
a)
Towards you
b)
Away from you and others
c)
Away from others
d)
Towards others and away from you
6.

A possible explanation to a problem that has not yet been tested is known as a ___.

a)
data
b)
theory
c)
hypothesis
d)
fact
7.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
8.

The summary at the end of an experiment that explains the results is known as the _____.

a)
conclusion
b)
procedures
c)
materials
d)
responding variable
9.
A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
10.
Observations made during an experiment are called:
a)
data
b)
problems
c)
conclusions
d)
questions
11.

What is the name of the layer of Earth that contains the uppermost mantle and crust?

a)
Asthenosphere
b)
Mesosphere
c)
Lithosphere
d)
Transosphere
12.

What are the two types of Earth's crust?

a)
continental and oceanic
b)

oceanic and upper

c)
lower and upper
d)

none of these

13.

What is the name many scientists use to refer to all the continents when they were thought to be joined as one super continent?

a)
Supreme Continent
b)
United States
c)
Eurasia
d)
Pangea
14.

What are the pieces of Earth's crust that carry the continents and oceans?

a)

sea floor spreading

b)

continental drift

c)

plates

d)

faults

15.

What is the name of Alfred Wegner's theory that continents are slowly moving over Earth's surface called?

a)

divergence

b)

faults

c)

plates

d)

continental drift

16.

What does the theory of Continental Drift state?

a)

Ocean currents move continents around the planet

b)

Convection works deep within the asthenosphere

c)

Mid-ocean ridges force tectonic plates to move

d)

Continents were once together and slowly drifted to where they are today

17.

What is thought to be the driving force behind the movement of the tectonic plates?

a)

Gravity

b)

Convection currents

c)

Wave motion

d)

Seismic activity

18.

What type of boundary is shown in the diagram?

a)

Divergent

b)

Convergent

c)

Transform

19.

What type of boundary is shown in the diagram?

a)

Divergent

b)

Convergent

c)

Slide/Transform

20.

What type of boundary is shown in the diagram?

a)

Divergent

b)

Convergent

c)

Slide/Transform

21.

When one tectonic plate sinks under another, this is called...

a)

Convegent

b)

Divergent

c)

Subduction

d)

Transform

22.

The Great Rift Valley in Africa and the Mid-Atlantic Ridge were both created by this type of plate boundary.

a)

Convergent

b)

Divergent

c)

Transform

23.

________ are formed by two continental plates colliding and forcing each other upwards during convergent boundary

a)

grassland

b)

mountain ranges

c)

snow

d)

trench

24.

Geologists have classified rocks into three major groups of rocks which are:

a)

inorganic, organic and chemical rocks

b)

igneous, sedimentary and metamorphic rocks

c)

metamorphic, chemical and non chemical rocks

d)

sedimentary, inorganic and igneous rocks

25.
What type of rock is created when magma or lava cools and crystallizes?
a)
Metamorphic
b)
Sedimentary
c)
Igneous
26.
This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?
a)
Sedimentary Rock
b)
Metamorphic Rock
c)
Igneous Rock
27.
Which type of rock is made from a rock being changed by heat and pressure?
a)
Smooshed Rock
b)
igneous
c)
metamorphic
d)
sedimentary
28.
Sediment goes through _________________ to become sedimentary rock.
a)
heat and pressure
b)
compacting and cementing
c)
weathering and erosion
d)
melting and cooling
29.

Which is the best description of the rock cycle?

a)

Molten rock that is stored underground.

b)

Rock material that forms where rocks are broken down into smaller pieces.

c)

When rock changes from one type into another type.

30.
Minerals are the building blocks of _____________.
a)
elements
b)
atoms
c)
fossils
d)
rocks
31.

How a mineral reflects light from its surface is known as ___.

a)

streak

b)

element

c)

fracture

d)

luster

32.

How a mineral breaks apart when it does NOT split evenly is known as ___.

a)

cleavage

b)

fracture

c)

luster

d)

solid

33.

The color of a mineral in powder form is called _____.

a)
hardness
b)
specific gravity
c)
luster
d)
streak
34.

A mineral's resistance to being scratched is called _____.

a)
streak
b)
luster
c)
hardness
d)
heft
35.

_____ occurs when a mineral breaks along a smooth, flat surface.

a)
cleavage
b)
fracture
c)
streak
d)
luster
36.

Weathering is the process of ____.

a)

Moving sediment from one place to another

b)

Dropping or leaving sediment in a location

c)

Breaking down rocks into sediment

37.

The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another is known as _____.

a)
weathering
b)
erosion
c)
deposition
d)
dumptruck
38.

The dropping off of sediments in a new place is called __________.

a)

weathering

b)

deposition

c)

sedimentary rock

d)

drop off zone

39.
How does freezing water cause the weathering of rocks?  The freezing water—
a)
keeps the rocks in place.
b)
makes the rocks last longer.
c)
expands cracks and breaks rocks.
d)
causes rocks to fall in landslides.
40.
What is the transfer of heat by movement of liquids or gases?
a)
conduction
b)
convection
c)
radiation
41.
What is the transfer of heat by direct contact?
a)
conduction
b)
convection
c)
radiation
42.

What is a transfer of heat energy by electromagnetic waves through space?

a)

conduction

b)

convection

c)

radiation

43.
You are stirring a bowl of hot soup with a metal spoon. The spoon starts to feel warmer because of _?_.
a)
conduction
b)
convection
c)
radiation
44.
You buy a lava lamp from the store. As the lamp heats up, blobs of liquid rise to the top then sink back down to the bottom. This process continues because of _?_.
a)
conduction
b)
convection
c)
radiation
45.
You are doing your homework at a desk that is underneath a lamp. You start to feel hotter because of _?_ from the lamp.
a)
conduction
b)
convection
c)
radiation
46.
You are roasting marshmallows at a campfire. The metal skewer (stick) that you’re cooking your marshmallow on burns your hand because of _?_.
a)
conduction
b)
convection
c)
radiation
47.

When using an oven, electrical energy is transferred to _____ energy.

a)
Thermal
b)
Solar
c)
Electrical
d)
None
48.

Using the picture of the fan, electrical energy is transferred to _____ energy.

a)
Mechanical
b)
Solar
c)
Electrical
d)
Thermal
49.

Looking at the picture, mechanical energy is transferred to _____ energy.

a)
Solar
b)
Mechanical
c)
Electrical
d)
Potential
50.

With a remote control car, chemical energy is transferred to _____ energy.

a)
Thermal
b)
Solar
c)
Mechanical
d)
Chemical
51.
Which type of energy transformation occurs when a flashlight shines?
a)
chemical → thermal → electrical
b)
chemical → electrical → light
c)
thermal → chemical → light
d)
chemical → electrical → chemical
52.
Which of the following shows the energy transformation that occurs when solar panels are used to heat a building?
a)
light → thermal
b)
chemical → electrical
c)
thermal → chemical
d)
light → mechanical
53.
The Theory of the Conservation of Energy states -
a)
Energy can be created, just not destroyed. It changes its form from one type to another.
b)
Energy can never be created nor destroyed. It can only change its form from one type to another.
c)
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
d)
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
54.

Which is the best description of an element?

a)

A substance that cannot be broken down into simpler substances

b)

A collection of atoms that have different abilities when joined together

c)

A man-made mineral

d)

A mixture of substances

55.

A substance that consists of 2 or more different elements is a

a)

element

b)

data table

c)

symbol

d)

compound

56.

What does the 6 represent in the picture taken from the periodic table?

a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
57.
What does 12.011 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
58.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
59.
Physical properties are
a)
properties that can be observed without changing the identity of the substance
b)
properties that describe how a substance changes into a completely different substance
60.

Which is the definition of chemical property?

a)
a property or characteristic of a substance that is observed during a reaction where the chemical composition of a substance is changed
b)
any change that results in the formation of new chemical substances
c)
combustibility
61.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
62.
Which is NOT a physical property?
a)
odor
b)
reacts with acid
c)
ability to conduct electric current
d)
hardness
63.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
64.

Flammability (if something burns): Chemical or Physical Property?

a)
Chemical Property
b)
Physical Property
65.
Solubility (dissolves): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
66.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
67.
A physical change occurs when a substance _____. 
a)
breaks into individual elements
b)
becomes a new substance
c)
changes from an acid to a base
d)
changes shape, size, and form
68.
A chemical change creates a _________. 
a)
change in volume
b)
new substance
c)
mixture
d)
solution
69.
What type of change is taking place when a pond freezes in the winter? 
a)
a physical change
b)
a material change
c)
a chemical change
d)
no change
70.

Melting ice cream is an example of a ___.

a)
physical change
b)
chemical change
71.

A rusting bicycle is an example of a ____.

a)
physical change
b)
chemical change
72.

Mowing the lawn is an example of a ____.

a)
physical change
b)
chemical change
73.

Burnt toast is an example of an ___.

a)
physical change
b)
chemical change
74.

Which of the following is NOT an example of a physical change?

a)

crumpling paper

b)

sharpening a pencil

c)

clothes shrinking

d)

sour milk

75.

Which of the following is NOT an example of chemical change?

a)

sour milk

b)

burning wood

c)

breaking a pencil

d)

rust

76.

Density is the relationship between

a)

mass and time

b)

mass and volume

c)

length and time

d)

length and volume

77.

What is the name of this tool used to measure volume?

a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
78.

What is this tool that measures mass?

a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
79.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
80.
Why do the liquids form different layers?
a)
They have different densities.  
b)
They have different masses.  
c)
They have different volumes.  
d)
They are different temperatures.  
81.
In the water displacement method for finding volume
a)
 You subtract the final volume from the initial volume
b)
You subtract the initial volume from the final volume
c)
You add the initial and final volumes
d)
You divide the final volume by 2 
82.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
83.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3 
c)
38.0 cm3
84.

Which box has a higher density and why?  

a)

Box A, because the molecules are more compact.

b)

Box B, because the molecules are further apart.

c)

Cannot be determined

d)

They are the same density.

85.
This picture shows the path Earth takes as it moves around the sun. What is the path called?
a)
a constellation
b)
a moon
c)
an orbit
d)
a planet
86.

Which is the correct order of inner planets, starting with closest to the sun?

a)

Mercury, Mars, Venus, Earth

b)

Mercury, Venus, Mars, Earth

c)

Mercury, Venus, Earth, Mars

d)

Mercury, Mars, Earth, Venus

87.
What are the first four terrestrial planets made of?
a)
Gas
b)
Rock
c)
Metal
d)
Ice
88.
What is the correct order of the outer planets?
a)
Neptune, Jupiter, Saturn and Uranus
b)
Uranus, Neptune, Saturn and Jupiter
c)
Jupiter, Saturn, Uranus and Neptune
d)
Neptune, Uranus, Saturn and Jupiter
89.

Which is NOT another name that refers to the outer planets?

a)

Jovian Planets

b)

Gas Giants

c)

dwarf planets

90.

____ is a chunk of ice and rock that has an elliptical orbit around the sun.

a)

comet

b)

asteroid

c)

moon

d)

planet

91.

____ are small, nearly round bodies whose orbits cross the orbits of other bodies. (Ex: Haumea, Ceres and Pluto)

a)

Moons

b)

Dwarf Planets

c)

Comets

d)

Asteroids

92.

Chunks of rock that vary in size and typically orbit the sun between Mars and Jupiter are known as _____.

a)

asteroids

b)

meteors

c)

stars

d)

satelites

93.
Which of the following separates the outer planets from the inner planets?
a)
Asteroid Belt
b)
Great Red Spot
c)
Kuiper Belt
94.

A large planet with a deep and massive gaseous atmosphere; less dense than a terrestrial planet

a)

Inner Planet

b)

Jovian Planet

c)

Terrestrial Planet

d)

Super Big Planet

95.

Uranus is different that other planets because it rotates _____. 

a)

on its side

b)

upside down

c)

backwards

96.

Pluto is a dwarf planet that is located in the _____.

a)
Oort cloud
b)
Kuiper Belt
c)
Moon system of Neptune
97.

The dwarf planet located in the asteroid belt is ___

a)

Ceres

b)

Eris

c)

Pluto

d)

Make make

98.

A small solar system object that enters the Earth's atmosphere and creates streaks of light is called a _________

a)

comet

b)

meteor

c)

meteorite

d)

Meteoroid

99.

Pluto, Eris, Haumea, MakeMake and Ceres are all classified as ____.

a)
meteors
b)
meteorites
c)
asteroids
d)
dwarf planets
100.

___________ are similar to planets but are not large enough to have cleared their orbital region of other objects.

a)

dwarf planets

b)

comets

c)

asteroid belt

d)

Kuiper Belt

101.

What are the outer planets?

a)

Jupiter, Saturn, Earth, Neptune

b)

Saturn, Neptune, Mars, Uranus

c)

Uranus, Saturn, Neptune, Jupiter

d)

Mercury, Venus, Earth, Mars

102.

What keeps the planets in orbit around the sun?

a)

gravity

b)

friction

c)

density

d)

distance

103.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

104.
Why can astronauts jump and float a little on the Moon?
a)
Because the Moon's gravity is NOT that STRONG.
b)
Because the Moon's gravity is VERY STRONG. 
105.

As the distance between objects increases (as they move further apart) the pull of gravity...

a)

increases

b)

decreases

c)

Stays the same

106.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
107.

When the Earth is between the sun and moon, what moon phase occurs?

a)

First Quarter

b)

Last Quarter

c)

New Moon

d)

Full Moon

108.
What are the reasons for the season?
a)
Earth's tilt & rotation
b)
Earth's tilt & revolution
c)
Earth's rotation & rovolution
d)
Earth's tilt & resolution
109.

An organism that needs to eat other organisms to obtain energy is known as a(n) ____.

a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
110.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
111.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
112.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
113.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
114.
An energy pyramid represents what?
a)
How much sunlight is available for the ecosystem to use. 
b)
How much energy a particular organism needs. 
c)
How much energy is needed to build a pyramid. 
d)
The amount of energy available to the next 'feeder' in a food web.
115.
An organism that eats the producer- (animals that eats plants)
a)
Secondary Consumer
b)
Primary Consumer
c)
Tertiary Consumer
d)
Consumer
116.
An organism that eats the primary consumer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Tertiary Consumer
d)
Producer
117.
An organism that eats the secondary consumer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Tertiary Consumer
d)
Consumer
118.
The role that an organism plays in the habitat and lifestyle of a population.
a)
Interdependence
b)
Primary Consumer
c)
Adaptation
d)
Niche
119.
An animal that consumes only plants.
a)
Carnivore
b)
Herbivore
c)
Decomposer
d)
Omnivore 
120.
An animal that eats plants as well as other animals.
a)
Carnivore
b)
Omnivore 
c)
Herbivore
d)
Consumer
121.
An animal that eats only other animals.
a)
Omnivore 
b)
Carnivore 
c)
Herbivore
d)
Producer
122.
Organisms which carry out the process of decomposition by breaking down dead or decaying organisms.
a)
Consumer
b)
Producer
c)
Decomposer
d)
Herbivore
123.
Term used to describe a one-celled organism is ________________
a)
multicellular
b)
cellular
c)
single organism
d)
unicellular
124.

Humans are _____ organisms whose cells have a nucleus.

a)
prokaryotic
b)
eukaryotic
125.

Which describes an  organism that produces its own food?

a)
heterotroph
b)
chef
c)
autotroph
d)
homeostasis
126.
What does "multicellular" mean?
a)
Has many animals
b)
made up of more than one cell
c)
 has one cell
d)
shows similar characteristics to other cells
127.
How many parents are necessary for asexual reproduction?
a)
2
b)
0
c)
3
d)
1
128.
How does a heterotroph get energy?
a)
by eating other organisms
b)
from photosynthesis
c)
from chemosynthesis
d)
they don't need energy
129.

Which type of cell shown?

a)
Prokaryote
b)
Eukaryote
130.

Which type of cell shown?

a)
Prokaryote
b)
Eukaryote
131.
What type of cell does not have a nucleus?
a)
eukaryotic 
b)
prokaryotic 
132.

Involves two parents and produces offspring different from parents

a)

external fertilization

b)

sexual reproduction

c)

internal fertilization

d)

asexual reproduction

133.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
134.

In a parasitic relationship, one organism is ______ and the other organism is benefiting.

a)

benefited

b)

harmed

c)

unaffected

135.

Commensalism is where one organism is benefiting and the other organism is ---

a)

unaffected.

b)

benefited.

c)

harmed.

136.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

137.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
138.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
139.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

a)

Predation

b)

Parasitism

c)

Commensalism

d)

Mutualism

140.
Northern biome with many coniferous trees; very cold temperatures in the winter months.
a)
Taiga
b)
tundra
c)
desert
d)
temperate rain forest
141.
Type of forest biome near the equator; receives a lot of rain; temperatures are warm all year.
a)
desert
b)
tropical rain forest
c)
arctic
d)
temperate rain forest
142.
Cold, dry biome where the soil stays frozen the entire year. Very little precipitation.
a)
savannah
b)
taiga
c)
tundra
d)
desert
143.
Biome with many different species of cacti and reptiles and very little rainfall.
a)
Desert
b)
Temperate Rainforest
c)
Tropical Rainforest
d)
Tundra
144.
Biome with many scattered shrubs, tall grasses and small trees.
a)
Savannah
b)
Grassland
c)
Desert
d)
Taiga
145.
Biome with plants and grasses, but no trees.
a)
grassland
b)
savannah
c)
taiga
d)
tundra
146.
What is classification?
a)
organizing things into groups according to shared characteristics
b)
making a list of organisms
c)
the process of identifying different types of animals
d)
the study of animals
147.
The method of naming organisms by using two names is known as
a)
binomial nomenclature
b)
dinomial menoclature
c)
dichotomous naming
d)
the scientific method
148.

Who first proposed binomial nomenclature as a way of classifying organisms?

a)

Carlus Linneaus

b)

Charles Darwin

c)

Albert Einstein

d)

Francis Crick

149.
The scientific name for an organism is made from the:
a)
class and family name
b)
genus and species name
c)
domain and kingdom name
d)
kingdom and phylum name
150.

What would be the most correct binomial nomenclature for the grizzly bear?

a)

Carnivora ursidae

b)

Ursus Horriblis

c)

Horriblis Ursus

d)

Ursus horriblis

151.
Binomial nomenclature makes it easier for scientists to communicate because ...
a)
everyone speaks latin
b)
everyone uses the same scientific name
c)
everyone knows all the animals
d)
its fun to call organisms by name
152.
The 8 levels of classification, most broad to most specific.
a)
Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species
b)
Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order
c)
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
d)
Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus
153.

Which list of characteristics describes organisms classified as animals?

a)

autotrophic, multicellular, prokaryotic

b)

multicellular eukaryotic, heterotrophic

c)

unicellular, eukaryotic, heterotrophic

d)

multicellular, eukaryotic, autotrophic

154.

In which kingdom does the organism below belong?

a)

Animalia

b)

Fungi

c)

Plantae

d)

Eubacteria

155.
The 2 kingdoms that make up Prokaryotes are?
a)
Animals and Plants 
b)
Protists and Fungi
c)
Archea and Bacteria
156.

What is the smallest, most specific category used to classify organisms?

a)

Kingdom

b)

Species

c)

Genus

d)

Family

157.

We know that Canis lupus is a gray wolf and Canis latrans is a coyote. What level of classification do they have in common?

a)

the Species name is the same

b)

They are both Cats

c)

the Genus name is the same

d)

They are Prokaryotes

158.

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

a)

friction

b)

force

c)

magnet

d)

gravity

159.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
160.
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.
161.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
162.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

163.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
164.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
165.
65 miles per hour North is an example of an objects what?
a)
Speed
b)
Velocity
c)
Average Speed
d)
Constant Speed
166.
Speed is different from velocity because
a)
Velocity has a direction
b)
Speed uses Distance /Time
c)
Velocity doesn't include time
d)
Velocity doesn't include distance
167.
An elevator traveled 15 floors (150 ft) at a speed of 4.5 m/s. What additional information is needed to determine the velocity of the elevator?
a)
the direction the elevator traveled
b)
how long the elevator was stationary
c)
how many times the elevator stopped
d)
the total distance the elevator traveled
168.

A huge system of millions or billions of stars, together with gas and dust, held together by gravity.

a)

galaxy

b)

solar system

c)

nebula

d)

asteroid

169.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
170.

All of space and everything in it.

a)

planet

b)

solar system

c)

galaxy

d)

universe

171.
A galaxy is a large collection of stars, gas and dust. What is responsible for holding the stars, gas, and dust together in a galaxy?
a)
heat
b)
light
c)
gravity
d)
friction
172.

This consists of the sun and all the objects that revolve around it.

a)

Universe System

b)

Galaxy System

c)

Solar System

d)

Gravity System

173.
A ________ is an object so dense with so much gravity that even light cannot escape.
a)
neutron star
b)
white dwarf
c)
blackhole
d)
black dwarf
174.

What are the three things that can be left behind after a star dies?

a)

planetary nebula, black hole, white dwarf

b)

red giant, white dwarf, black hole

c)

white dwarf, black hole, neutron star

d)

white hole, brown dwarf, asteroid

175.

Stars use _____ as fuel.

a)

carbon

b)

hydrogen

c)

oxygen

d)

uranium

176.
Two examples of a pulley...
a)
knife & axe blade
b)
lightbulb & screw
c)
flagpole hoist & window blinds
d)
catapult & teeter totter

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