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Science Assessment for Grade 8

Total questions: 100

Worksheet time: 1hrs 8mins

Name
Class
Date
1.

The smallest planet is ...

a)

Mercury.

b)

Jupiter.

2.

What is this?

a)

Solar System

b)

Orbit

c)

Reflect

3.

True or False

Uranus has rings

a)

True

b)

False

4.

Earth have __________ magnetic Feild

a)

Thick

b)

Rough

c)

Smooth

d)

Powerful

5.

Jupiter is the _________ planet in the solar system

a)

Smallest

b)

Biggest

6.

What is the order of the planets in our solar system?

a)

Earth, Venus, Uranus, Mercury, Saturn, Mars, Neptune, Jupiter

b)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

c)

Earth's moon, the Sun, Mars, Neptune, Venus

d)

None of the above

7.

Which planet is third from the sun?

a)

Earth

b)

Mars

c)

Jupiter

d)

Mercury

8.

WHAT IS THE HOTTEST PLANET?

a)

EARTH

b)

VENUS

c)

SATURN

d)

MARS

9.

WHAT PLANET DOES HAVE HUMAN LIFE?

a)

MOON

b)

SATURN

c)

VENUS

d)

EARTH

10.

WHAT IS THE CLOSEST PLANET TO THE SUN?

a)

MARS

b)

VENUS

c)

MOON

d)

MERCURY

11.

WHAT IS A BIG BALL OF GAS THAT MAKES LIGHT AND SHINE?

a)

LANTERN

b)

STAR

c)

URANUS

d)

CLOUD

12.

COMPLETE: "IN SPACE WE DON'T HAVE ______________".

a)

ALIENS

b)

GRAVITY

c)

PLANETS

d)

STARS

13.

HOW DO THE ASTRONAUTS GO TO SPACE?

a)

AIRPLANE

b)

FLYING SAUCER

c)

SPACE SHUTTLE

d)

SPACE SUIT

14.
Any object that revolves around another object
a)
orbiter
b)
satellite
c)
moon
d)
stalker
15.
What is the ISS?
a)
International Student Services
b)
Inside Sun Secrets
c)
International Space Station
d)
Iraq Space Services
16.
A tool for viewing and observing
a)
telescope
b)
space shuttle
17.
I orbit Earth and help your cell phones work. What am I?
a)
Space Shuttle 
b)
Rover
c)
Satellite
d)
Rocket
18.

the moon orbiting the earth is an example of:

a)

natural satellite

b)

artificial satellite

19.
Which were the first to walk on the moon?
a)
Buzz Lightyear and Woody
b)
Alan Shepard and Sally Ride
c)
Buzz Aldrin and Neil Armstrong
d)
John Glenn and Yuri Gargarin
20.
Reusable spacecraft that transports astronauts, satellites, and other materials to and from space.
a)
Space ship
b)
Space shuttle
c)
Voyager 1
d)
Space station
21.
Select the order from smallest to largest.
a)
Sun, Milky Way, solar system, universe
b)
Sun, Milky Way, universe, solar system
c)
Sun, solar system, Milky Way, universe
d)
Sun, solar system, universe, Milky Way
22.
Which factor makes Earth different from all the other planets in the solar system in its ability to support life? 
a)
The Earth is exposed to rays from the sun. 
b)
The Earth has only one moon that orbits around it. 
c)
The Earth rotates in an elliptical orbit around the sun. 
d)
The Earth has a breathable atmosphere. 
23.
All of Earth experiences night at the same time.
a)
True
b)
False
24.
Which planet has the shortest orbit around the sun?
a)
Earth
b)
Mercury
c)
Saturn
d)
Neptune
25.

Planet X is a jovian planet. It does not have rings and has the most number of moons. According to scientists, it is also the biggest planet. What is the name of planet X?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

26.
A planet is a spherical body that orbits the ____?
a)
Earth
b)
Universe 
c)
Sun
d)
King Kong
27.
This is a large collection of stars, gas, and dust that is held together by gravity.
a)
Galaxy
b)
Spiral Arms
c)
Earth
d)
Star
28.
Earth has 1, Jupiter has more than 60.......
a)
stars
b)
people
c)
layers
d)
moons
29.
What is the Moon?
a)
It is a planet
b)
It is a satellite
c)
It is a star
d)
It is a comet
30.
How long does it take to the Earth to do the ROTATION MOVEMENT?
a)
365 days
b)
24 hours
c)
24 hours + 6 hours
d)
28 days
31.
What is Pluto?
a)
An asteroid
b)
A planet
c)
A dwarf planet
d)
It doesn't exist
32.

Flowering plants are called:

a)

pretty

b)

monocotyledons

c)

dicotyledons

d)

angiosperms

33.

Plants that have flowers or fruit are called...

a)

Flowering

b)

Coniferous

c)

Nonvascular

34.

Plants that have cones are called...

a)

Flowering

b)

Coniferous

c)

Nonvascular

35.

Which of the following is a characteristic feature of Mosses?

a)

They produce flowers

b)

They have a well-developed vascular system

c)

They reproduce through seeds

d)

They lack true roots, stems, and leaves

36.

Gymnosperms are characterized by:

a)

Seeds enclosed in fruits.

b)

Naked seeds.

c)

Flowers for reproduction.

d)

No seeds.

37.
Plants are multicellular, which means
a)
they are made of many cells.
b)
they are made of one cell.
38.
What part of the plant soaks up nutrients from the ground?
a)
leaves
b)
stem
c)
roots
d)
flower
39.
Which part of the plant makes the food?
a)
roots
b)
stem
c)
leaf
d)
flower
40.

Green substance that turn the leaves green

a)

Chlorophyll

b)

Roots

c)

Green Paint

d)

Spore

41.

Which part of the plant supports the plant and holds the leaves up toward the light?

a)

Stem

b)

Leaf

c)

Root

d)

Flower

42.

Which part of the plant is the location where photosynthesis, respiration, and transpiration occurs?

a)

Stem

b)

Root

c)

Leaf

d)

Flower

43.

Which of the following are used in the overall reactions for photosynthesis?

a)

carbon dioxide

b)

water

c)

light

d)

all of the above

44.

Photosynthesis uses sunlight to convert water and carbon dioxide into

a)

oxygen.

b)

high-energy sugars.

c)

ATP and oxygen.

d)

oxygen and high-energy sugars.

45.

Which of the following is released during cellular respiration?

a)

oxygen

b)

air

c)

energy

d)

lactic acid

46.

Which of these is a product of cellular respiration?

a)

oxygen

b)

water

c)

glucose

d)

all of the above

47.

Where do nutrients come from?

a)

soil

b)

water

c)

air

d)

all of these

48.

Where does a plant get energy?

a)

sunlight

b)

water

c)

soil

d)

air

49.

Where do animals get energy?

a)

food

b)

air

c)

water

d)

sunlight

50.

Which organelle does cellular respiration happen in?

a)

Nucleus

b)

Mitochondria

c)

Chlorophyll

d)

Chloroplast

51.

Which muscle is involved in breathing?

a)

diaphragm

b)

biceps

c)

abdominal

52.

The air sacs that are covered with capillaries where gas exchange takes place is _________?

a)

Bronchi

b)

Trachea

c)

Oxygen

d)

Alveoli

53.
Identify the diaphragm.
a)
C
b)
D
c)
E
d)
F
54.

The contraction and relaxation of muscles.

a)

Respiration

b)

Breathing

c)

Venti

d)

Ventilation

55.

The movement of air into and out of the lungs.

a)

Respiration

b)

Breathing

c)

Viridescent

d)

Ventilation

56.

Gas particles always flow from an area of ____________ pressure to an area of _____________ pressure until _____________ is achieved.

a)

lower, higher, equation

b)

higher, lower, equity

c)

lower, higher, equilibrium

d)

higher, lower, equilibrium

57.

Which of the following are true about inspiration?

a)

It is another word for inhalation.

b)

It is another word for insanity.

c)

It is the movement of air out of the lungs.

d)

It is the movement of air into the lungs.

58.

A chemical reaction that breaks down glucose to produce energy.

a)

Respiration

b)

Breathing

c)

Veganism

d)

Ventilation

59.

Which of the following are true about expiration?

a)

It is another word for extremism.

b)

It is another word for exhalation.

c)

It is the movement of air out of the lungs.

d)

It is the movement of air into the lungs.

60.

The diagram shows a set up to demonstrate the breathing mechanism in our body. What do the balloons represent in the body?

a)

lungs

b)

bronchiole

c)

trachea

d)

diaphragm

61.

The ultimate goal of respiration is to produce (a)   .

62.

When a person inhales... (2 answers)

a)

the chest cavity volume decreases.

b)

the diaphragm contracts.

c)

the air pressure inside the chest cavity decreases.

d)

the rib cage moves down.

63.

When the diaphragm contracts it ____________, when it relaxes it _____________.

a)

flattens, curves upwards

b)

curves upwards, flattens

c)

expands, diffuses

d)

diffuses, expands

64.

When a person exhales... (3 answers)

a)

the chest cavity volume decreases.

b)

the diaphragm relaxes.

c)

the air pressure inside the chest cavity decreases.

d)

the rib cage moves down.

65.

Aerobic Respiration

A + B --> C + D + Energy

a)

A: Oxygen, B: Carbon Dioxide, C: Glucose, D: Water

b)

A: Oxygen, B: Glucose, C: Carbon Dioxide, D: Water

c)

A: Water, B: Carbon Dioxide, C: Oxygen, D: Glucose

d)

A: Carbon Dioxide, B: Glucose, C: Oxygen, D: Water

66.

When we exercise, our cells need more ___________ to produce more energy through ____________. That is why our breathing rate ______________ when we exercise.

a)

carbon dioxide, respiration, increases

b)

oxygen, photosynthesis, decreases

c)

oxygen, respiration, increases

d)

carbon dioxide, photosynthesis, decreases

67.

Cellular Respiration's goal is to

a)

make water

b)

make energy

c)

make glucose

d)

make oxygen

68.
What gas is released into the air during cellular respiration?
a)
oxygen
b)
carbon dioxide
c)
water 
d)
glucose
69.

___ is the process that cells use to take energy from glucose.

a)

cellular respiration

b)

photosynthesis

c)

transpiration

d)

excretion

70.

The ___ is the cell part (organelle) inside cells where cellular respiration happens.

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

ribosome

71.

___ is needed for cellular respiration, it is absorbed from the air.

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

water

72.

What two things are needed for cellular respiration to happen in a cell?

a)

glucose & oxygen

b)

water & carbon dioxide

c)

oxygen & carbon dioxide

d)

glucose & water

73.

The primary purpose of cellular respiration is to produce ___.

a)

ATP

b)

sugar

c)

glucose

d)

heat

74.

Both ___ are leftover as waste products after cellular respiration.

a)

water & carbon dioxide

b)

oxygen & glucose

c)

carbon dioxide & oxygen

d)

water & oxygen

75.

Which of the following is the word equation for cellular respiration?

a)

glucose + oxygen ---> ATP + carbon dioxide + water

b)

carbon dioxide + water ---> ATP + glucose + oxygen

c)

glucose + water ---> ATP + carbon dioxide + oxygen

d)

glucose + carbon dioxide ---> ATP + oxygen + water

76.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
77.

One molecule needed for cellular respiration is

a)

carbon dioxide

b)

glucose

c)

water

d)

chlorophyll

78.

Aerobic cellular respiration uses 1 molecule of glucose to produce approximately

a)

2 ATP molecules

b)

4 ATP molecules

c)

32-34 ATP molecules

d)

36-38 ATP molecules

79.

How many phosphates are in ATP?

a)

2

b)

3

c)

36

d)

23

80.

The entire region surrounding a magnet is known as the:

a)

Magnetic Domain

b)

Lodestone

c)

A Compass

d)

Magnetic Field

81.

Which poles repel or push apart each other?

a)

north and south

b)

south and north

c)

south and south

82.

Which type of magnet loses magnetism outside of a magnetic field?

a)

a strong magnet

b)

a temporary magnet

c)

a permanent magnet

d)

an electromagnet

83.
A paper clip is an example of a:
a)
magnetic material
b)
permanent magnet
c)
bar magnet
d)
insulator
84.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
85.

Which materials is not magnetic?

a)

plastic

b)

iron

c)

cobalt

d)

nickel

86.
Which metals are attracted to magnets? 
a)
iron, nickel, cobalt
b)
gold, silver, platinum
c)
copper, magnesium, aluminum
87.

What are two things that the forces of magnetism and gravity have in common?

a)

They both form fields

b)

They are both non-contact forces

c)

They are both contact forces

d)

Both A and B (Option 1 and Option 2)

88.

The biggest magnet on Earth is _______

a)

A Volcano

b)

The Statue of Liberty

c)

Magneto

d)

Earth Itself

89.

The movement of a swing is known as ............

a)

transitional motion

b)

wave motion

c)

oscillatory motion

d)

(a) and (b)

90.

The Motion in which the object travels in a straight line is ______

a)

Rectilinear Motion

b)

Random Motion

c)

Combined Motion

d)

Curvilinear Motion

91.

Motion of a butterfly can be described as

a)

Uniform-linear

b)

Rotational

c)

Periodic

d)

Random

92.

The pace an object travels in a certain amount of time

a)

speed

b)

acceleration

c)

Velocity

d)

motion

93.

An objects speed does no change over its entire distance

a)

Constant speed

b)

acceleration

c)

average speed

d)

velocity

94.

Average speed is an average of all of the speeds during a trip/distance

a)

True

b)

False

95.

The action or process of moving or being moved

a)

motion

b)

speed

c)

distance

d)

going

96.
Without gravity we would________. 
a)
Float away
b)
Stay in the ground
c)
Nothing would happen.
d)
I don't know
97.

I am the fastest object in the Universe?

a)

Airplane

b)

Spaceship

c)

Light

d)

Sound

98.

While you are travelling in a car, you are in ______________ with respect to road?

a)

Motion

b)

Rest

c)

No change

99.
Select the slowest out of the following 
a)
Person Walking
b)
Cheetah Running
c)
Turtle Crawling
d)
Car on a highway
100.
Select the fastest out of the following
a)
Person walking
b)
Car on a highway
c)
Rabbit running from a fox
d)
Airplane in the sky