wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Science 7 SE Revision 4

Total questions: 100

Worksheet time: 1hrs 15mins

Name
Class
Date
1.
Which is an example of a compound?
a)
Kool-Aid
b)
Water (H2O)
c)
Aluminum (Al)
d)
Air
2.
Energy can run out because it can´t be replace as we use it.
a)
Non Renewable.
b)
Renewable.
c)
Energy Sources.
d)
Fossil Fuels.
3.
Shoes, Pens are ___________ materials.
a)
Transparent.
b)
Translucent and Opaque.
c)
Opaque.
d)
Luminous.
4.
The most common light phenomena are ...
a)
Convex and Concave.
b)
Dispersion, Reflection and Refraction.
c)
Translucent and Opaque
d)
Heat transfer.
5.
A rainbow is a natural example of ......
a)
Reflection.
b)
Refraction
c)
Reflected rays.
d)
Dispersion.
6.

The arrow in a chemical equation means

a)

forms

b)

yields

c)

produces

d)

all of the answer choices are correct

7.
What are the three main states of matter?
a)
solid, liquid, grapes
b)
solid, liquid, gas
c)
solid, dry, liquid
d)
apples, trees, water
8.
Which state of matter has particles that move the fastest?
a)
solid
b)
liquid
c)
gas
d)
water
9.
What is the last step in the scientific method?
a)
conclusion
b)
experiment
c)
ask a question
d)
form a hypothesis
10.
What is a hypothesis?
a)
a question
b)
what you expect the answer will be
c)
conclusion
d)
experiment
11.
What is a chemical change?
a)
When a new substance is created.
b)
when nothing changes
c)
when state of matter changes
d)
when water freezes
12.
Which organism is most likely to experience the early negative effects of global warming?
a)
a tree frog living in the Amazon jungle
b)
a snake living in the desert in Africa
c)
phytoplankton drifting in ocean currents
d)
a polar bear living on ice in the Arctic
13.
Increased levels of carbon dioxide in the atmosphere in the past century is causing
a)
acid rain
b)
ozone depletion
c)
global warming
d)
smog
14.

The diagram below shows a ball held in place by two blocks. the diameter (width) of the ball is shown between the two blocks. What is the diameter of just the ball?

a)

6.0 cm

b)

8.0 cm

c)

14.0 cm

d)

17.0 cm

15.

The diagram below shows a triple beam balance. What is the maximum mass, in grams, the could be measured by this balance?

a)

110 g

b)

500 g

c)

610 g

d)

1510 g

16.

Because copper is a metal, is it

a)

liquid at room temperature

b)

not reactive with other substances

c)

a bad conductor of electricity

d)

a good conductor of heat

17.
What is the name of the science lab tool in the picture?
a)
beaker
b)
graduated cylinder
c)
test tube
d)
flask
18.
Measure the object using the ruler.
a)
5in
b)
5cm
c)
5.0cm
d)
5.1 cm
19.
A property of matter that can be observed or measured without changing the identity of the matter ex. color,shape size, etc. 
a)
physical change
b)
physical property
c)
chemical property
d)
chemical change
20.

In which organelle does photosynthesis occur?

a)

lysosomes

b)

mitochondrion

c)

nucleus

d)

chloroplasts

21.

What three organelles do plants have that animals do not?

a)

cell wall, chloroplasts, large central vacuole

b)

chloroplasts, cell membrane, mitochondrion

c)

cell wall, lysosomes, nucleus

d)

lysosomes, mitochondrion, cell membrane

22.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
23.
What is the source of energy for photosynthesis?
a)
Carbohydrates (chemical energy)
b)
Light (radiant energy)
c)
Heat (thermal energy)
d)
Wind (kinetic energy)
24.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
25.

Aliya was badly injured in a car accident. Her wounds were taking a long time to heal fully. To help her wounds heal faster, Rani should maintain a diet rich in _______________.

a)

carbohydrates

b)

starch

c)

protein

d)

fatty acids

26.

Identify the type of chemical reaction?

a)

synthesis

b)

decomposition

c)

combustion

d)

double replacement

27.

Which of the following is the correct compound name of NaF?

a)

Sodium Flouride

b)

Sodium flouride

c)

Acetate

d)

Table salt

28.

Which of the following is the correct compound name of the chemical formula N2O3?

a)

Nitrogen oxide

b)

dinitrogen trioxide

c)

Nitrogen trioxide

29.
Define the term 'balanced diet'.
a)
A diet containing some nutrients in the correct proportions.
b)
A diet containing most nutrients in the correct proportions.
c)
A diet containing none nutrients in the correct proportions.
d)
A diet containing all nutrients in the correct proportions.
30.
Which nutrient provides the most amount of energy per gram?
a)
Carbohydrate
b)
Fats
c)
Protein
d)
Vitamin
31.
Taller and bigger people need ______________ energy than shorter and smaller people.
a)
same
b)
more
c)
equal
d)
less
32.
Chicken, fish and meat contain which nutrient?
a)
Protein
b)
Carbohydrate
c)
Fats
d)
Minerals
33.
Which component of a healthy, balanced diet helps with constipation? 
a)
Fibre
b)
Fats
c)
Minerals
d)
Protein
34.
Which food contains carbohydrates?
a)
Fish
b)
Pasta
c)
Egg
d)
Carrot
35.
Jerry wants to build up his muscles, which food group intake he should increase ? 
a)
Carbohydrates
b)
Fats
c)
Proteins
d)
vitamins
36.

Deficiency of which nutrient leads to this disease?

a)

Vitamin A

b)

Vitamin D

c)

Vitamin C

37.

Having iodized salt regularly in your food will help in the prevention of __________.

a)

Goitre

b)

Anaemia

c)

Rickets

38.

Having foods rich in this vitamin will prevent Beriberi disease.

a)

Vitamin A

b)

Vitamin C

c)

Vitamin B1

39.

Infection and bleeding of gums can be prevented by having foods rich in ___________.

a)

Iron

b)

Calcium

c)

Vitamin C

40.

Which type of food is a solution to fight malnutrition in many countries.

a)

Fortified food

b)

Forfyfied food

c)

Fortifried food

d)

Fortifeed food

41.

Name this Table.

a)

Table of Scientists

b)

Table of Compounds

c)

Table of Chemicals

d)

Periodic Table of Elements

42.

Name this element.

a)

Si

b)

Cu

c)

Co

d)

W

43.

How about this element?

a)

Fe

b)

I

c)

Li

d)

Al

44.

What element is present inside these balloons?

a)

H

b)

He

c)

O

d)

CO

45.

Name this element.

a)

Sodium

b)

Selenium

c)

Sumium

d)

Sulfur

46.

Hydrochloric acid is secreted in the _______________ .

a)

oesophagus

b)

stomach

c)

large intestine

d)

small intestine

47.

Most nutrient absorption occurs in the ________________ .

a)

mouth

b)

stomach

c)

large intestines

d)

small intestines

48.

Which of the following is the correct order for the major parts of the gastrointestinal tract?

a)

oesophagus, stomach, large intestine, small intestine, mouth

b)

mouth, stomach, oesophagus, large intestine, small intestine

c)

mouth, small intestine, stomach, oesophagus, large intestine

d)

mouth, oesophagus, stomach, small intestine, large intestine

49.

Protein is broken down into ______________ before they are asborbed into the small intestines.

a)

fatty acids

b)

amino acids

c)

citric acid

d)

hydrochiloric

50.
Which of these is NOT a carbohydrate?
a)
sugar
b)
starch
c)
fiber
d)
fat
51.
Which of the following substances is Not found in living things?
a)
fats
b)
minerals
52.
Which organ in the digestive system absorbs the most water from food?
a)
esophagus
b)
small intestine
c)
large intestine
d)
stomach
53.
Which of the following is NOT a source of protein?
a)
red meat
b)
broccoli
c)
beans
d)
eggs
54.
Amylase is an example of an ______.
a)
accessory organ
b)
enzyme
55.
Besides carbohydrates, proteins, fats, vitamins and minerals, what other nutrient does your body need for life?
a)
DNA
b)
chlorophyll
c)
water
56.
Which part of the digestion process speeds up the break down of food?
a)
enzyme
b)
villi
c)
carbohydrates
57.

What type of digestion involves the actual breaking apart of the food by our teeth, tongue, or muscles?

a)

chemical digestion

b)

diffusion

c)

mechanical digestion

d)

peristalsis

58.

Involuntary muscle contractions which move a bolus through the gastrointestinal tract are called

a)

mastication

b)

peristalsis

c)

defecation

d)

chyme

59.

The process of breaking down food into nutrient rich molecules.

a)

absorption

b)

digestion

c)

peristalsis

d)

villi

60.

Which of these is NOT a function of the digestive system?

a)

breaks down food

b)

absorbs nutrients

c)

eliminates waste

d)

takes oxygen to body cells

61.
What does this picture represent? 
a)
solid
b)
liquid 
c)
gas
d)
plasma
62.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
63.
What does this picture represent? 
a)
solid
b)
liquid
c)
gas
d)
plasma
64.
The molecules in the picture are tightly held together with little movement. They have shape and energy.  Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
65.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
66.
What happens to the particles when I add heat?
a)
The particles get bigger
b)
The particles get smaller
c)
The particles get slower
d)
The particles get faster
67.
Which of the following statements describes a liquid?
a)
It has a fixed volume
b)
It becomes the volume of it's container
68.
My glass of ice water is sitting in the sun and has droplets of water on the outside of the glass. What is happening?
a)
condensation
b)
evaporation
c)
melting
d)
freezing
69.
All changes in the state of matter of a substance requires
a)
vibration
b)
water
c)
permission
d)
energy
70.
The steam coming off the pot of boiling water is an example of....
a)
a solid becoming a liquid
b)
a liquid becoming a solid
c)
a liquid becoming a gas
d)
a gas becoming a liquid
71.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature
72.

State of matter with a definite shape and definite volume.

a)

solid

b)

liquid

c)

gas

73.

State of matter with a definite volume, but no definite shape.

a)

solid

b)

liquid

c)

gas

74.

Particles vibrate in place and do not change relative positions.

a)

solid

b)

liquid

c)

gas

75.

When ice sits out on a counter and melts, it is because the ice has...

a)

gained mass

b)

gained energy

c)

lost mass

d)

lost energy

76.

What happens when the speed of particles decreases?

a)

Their temperature decreases

b)

Their temperature increases

c)

Their mass decreases

d)

Their mass increases

77.

The amount of space something takes up is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

78.
When water vapor gets cold, it turns to a...
a)
liquid
b)
solid
c)
raindrop
d)
ice
79.

In science, Force is DEFINED as...

a)

A push or pull

b)

A hop, skip and jump

c)

A push, pull or twist

d)

What gives a Jedi his power

80.

Which of the following is a contact force?

a)

Magnetic

b)

Friction

c)

Electrical

d)

Gravitational

81.

The girl's hair is attracted to the balloons because of which force?

a)

Electrostatic

b)

Magnetic

c)

Friction

d)

Buoyancy

82.

What is the electric charge of an electron?

a)

neutral

b)

positive

c)

affirmative

d)

negative

83.

Are the forces exerted by the cats balanced or unbalanced?

a)

Balanced

b)

Unbalanced

84.

What type of force is needed to unlock a door?

a)

Pull

b)

Push

c)

Twist

d)

Jump

85.

Which of the following is NOT a way to reduce friction?

a)

Use balls or wheels

b)

Spray the surface with oil or grease

c)

Hovering an object so the surfaces don't touch

d)

Add more weight

86.

I am a contact force that can only cause an object to slow down

a)

Thrust

b)

Friction

c)

Tension

d)

Magnetic

87.

Gravity is a:

a)

contact force

b)

non-contact force

88.
Name the 2 factors that affect acceleration of an object
a)
velocity and time
b)
distance and time
c)
mass and force
d)
mass and time
89.
Substances that CANNOT be broken down chemically into other substances are (pure physical and chemical down to the atom)
a)
elements
b)
compounds
c)
mixtures
d)
solutions
90.
The measurement of the force of gravity on an object (varies depending on the planet’s mass) is the object’s
a)
mass
b)
volume
c)
weight
d)
density
91.
All elements are composed of extremely small particles called
a)
compounds
b)
mixtures
c)
atoms
d)
molecules
92.
Which of the following is NOT an example of a chemical change?
a)
gas burning on a stove
b)

iron combining with oxygen to form rust
c)

salt dissolving in a glass of water
d)

using electricity to break down water into hydrogen and oxygen
93.
How do liquid water, ice, and water vapor differ from each other?
a)
They are different states of matter.
b)
They are different compounds.
c)
They are made of different kinds of molecules.
d)

They are made of different kinds of atoms.
94.
If you describe methane as a gas that easily catches fire, you are describing a
a)

state of matter.
b)

physical property.
c)

chemical property.
d)

chemical formula.
95.
If these boys 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.
96.
Why is person B having a hard time moving down the hill?
a)
Person B has more friction than person A.
b)
Person B has the same friction as person A.
c)
Person B is out of shape.
d)
Person B has less friction has person A.
97.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
98.

A magnet cannot move which of the following objects?

a)

a paper clip

b)

a nail

c)

a toothpick

d)

a staple

99.

Every magnet has a:

a)

East and West pole

b)

North and South pole

c)

East and South pole

d)

North and West pole

e)

Chicago and Saint pole

100.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right

Similar Resources on Wayground

Reporting Category 1

100 questions

Reporting Category 1

quiz

Worksheet

•

6th - 8th Grade

heat

100 questions

heat

quiz

Worksheet

•

7th Grade

LaFond's Life Science Review

100 questions

LaFond's Life Science Review

quiz

Worksheet

•

KG - University

Vertebrates

95 questions

Vertebrates

quiz

Worksheet

•

7th Grade

Physical Sciences Review SDMS

100 questions

Physical Sciences Review SDMS

quiz

Worksheet

•

7th Grade

Unit B (Chemistry) Study Session

100 questions

Unit B (Chemistry) Study Session

quiz

Worksheet

•

7th Grade

ĐƠN CHẤT HỢP CHẤT PHÂN TỬ KHTN 7

96 questions

ĐƠN CHẤT HỢP CHẤT PHÂN TỬ KHTN 7

quiz

Worksheet

•

7th Grade

Sistem Organisasi Kehidupan: Sel & Jaringan

100 questions

Sistem Organisasi Kehidupan: Sel & Jaringan

quiz

Worksheet

•

7th Grade