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Science Test

Total questions: 115

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
2.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

3.
This step of the scientific method is an educated guess or a prediction. 
a)
Hypothesis
b)
Research
c)
Observation
d)
Conclusion
4.
The independent variable is the ONE thing you _____.
a)
change on purpose
b)
control or keep constant
c)
measure
5.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

6.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes. This helps us understand cause and effect.
c)
It is what has always been done
7.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

8.

What is a constant/control in an experiment?

a)

Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

b)

It's the variables that the scientist changes in the experiment

c)

It's the variables that are being measured in an experiment

9.
Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.
a)
If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
b)
Yes.
c)
No.
d)
I think the construction paper air plane will fly faster.
10.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
11.

At what temperature did bread mold the slowest?

a)

20

b)

40

c)

60

d)

80

12.

As temperature increases, the time for the bread to mold

a)

Increases

b)

Decreases

13.
This is the last step in the scientific method
a)
Draw a conclusion
b)
Record your data as results
c)
Share what you have learned with others
d)
Collaborate with others
14.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
15.
Which side of a penny will hold more drops of water? Choose the best hypothesis.
a)
If I use the heads side of a penny, then it will hold more drops of water than tails.
b)
Heads
c)
Tails
d)
Tails will hold more drops of water.
16.
If I study for my scientific method test, then I will have a better test score. What is the dependent variable?
a)
Scientific Method
b)
Studying
c)
Independent variable
d)
Test score
17.
Why is it important that scientists modify scientific theories when important new information is discovered?
a)
to confuse other scientists
b)
to keep the theory interesting and fresh
c)
to keep the theory as accurate and effective as possible
d)
to make sure the general public does not understand the theory
18.
What is being changed in this experiment?
a)
ramp height
b)
the speed that the ball rolls
c)
type of ball
19.
What is being kept constant?
a)
ramp height
b)
speed of the ball rolling
c)
type of ball
20.
Why is it important for people to understand scientific principles and to think scientifically? 
a)
It allows people to make informed decisions.
b)
It helps people estimate costs of products
c)
It helps people choose where to live
d)
It allows people to explain sports like an expert
21.

Identify the tool/equipment.

a)

Erlenmeyer Flask

b)

Florence Flask

c)

Beaker

d)

Graduated Cylinder

22.

Identify the tool/equipment.

a)

Erlenmeyer Flask

b)

Florence Flask

c)

Beaker

d)

Graduated Cylinder

23.

Identify the tool/equipment.

a)

Erlenmeyer Flask

b)

Florence Flask

c)

Beaker

d)

Graduated Cylinder

24.

Identify the tool/equipment.

a)

Erlenmeyer Flask

b)

Florence Flask

c)

Beaker

d)

Graduated Cylinder

25.

Identify the tool/equipment.

a)

Test Tube

b)

Dropper

c)

Pipette

d)

Stirring Rod

26.

Identify the tool/equipment.

a)

Test Tube

b)

Dropper

c)

Pipette

d)

Stirring Rod

27.

Identify the tool/equipment.

a)

Test Tube

b)

Dropper

c)

Pipette

d)

Stirring Rod

28.

Identify the tool/equipment.

a)

Crucible and cover

b)

Evaporating Dish

c)

Petri Dish

d)

Wire Gauze

29.

Identify the tool/equipment.

a)

Crucible and cover

b)

Evaporating Dish

c)

Petri Dish

d)

Wire Gauze

30.

Identify the tool/equipment.

a)

Crucible and cover

b)

Evaporating Dish

c)

Petri Dish

d)

Wire Gauze

31.

Identify the tool/equipment.

a)

Crucible and cover

b)

Evaporating Dish

c)

Petri Dish

d)

Wire Gauze

32.

Identify the tool/equipment.

a)

Triple beam balance

b)

Double arm balance

c)

Spring balance

d)

Digital scale

33.

Identify the tool/equipment.

a)

Triple beam balance

b)

Double arm balance

c)

Spring balance

d)

Digital scale

34.

Identify the tool/equipment.

a)

Triple beam balance

b)

Double arm balance

c)

Spring balance

d)

Digital scale

35.

Identify the tool/equipment.

a)

Triple beam balance

b)

Double arm balance

c)

Spring balance

d)

Digital scale

36.
a)
Poison/Toxic
b)
Bio Hazard
c)
Radioactive
d)
Corrosive
37.

What safety symbol is this?

a)

Explosion

b)

Flammable

c)

No Open Flame

d)

Oxidizing Agent

38.

What symbol is this?

a)

Explosive Material

b)

Hot surface

c)

Sharp Object

d)

Cold Hazard

39.

What symbol is this?

a)

Cold Hazard

b)

Biohazard

c)

Radiation Hazard

d)

Laser Hazard

40.

What symbol is this?

a)

Strong Magnetic Field

b)

Lizard

c)

Hazard

d)

Hot Surface

41.
True or False: If you see something dangerous taking place during a lab,you should immediately tell the teacher.
a)
True
b)
False
42.
Which of the following should NOT be worn during a lab investigation?
a)
Flip flops
b)
Loose, long hair
c)
Dangling jewelry
d)
All of the above
43.
Disrupting other students in the laboratory with horseplay in the lab is:
a)
helpful.
b)
allowed
c)
dangerous.
d)
the quickest way to do a job.
44.
What is used to protect your eyes from chemicals, broken glass, and fire?
a)
Fire blanket
b)
Eye wash
c)
Goggles
d)
Flask
45.

I may get the science supplies I need for an experiment.

a)

whenever I want

b)

when I think it is safe

c)

when the supplies are out and ready to use

d)

when the teacher gives me permission

46.

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

a)

treat your hands with skin lotion.

b)

wipe your hands on a towel.

c)

wipe your hands on your clothes.

d)

wash your hands thoroughly with soap and water

47.

4. Why are safety symbols important?

a)

They tell me how to do an experiment

b)

Because the icon looks cool

c)

Symbols tell me the content of the substances

d)

They tell me specific dangers

48.

The wearing of flip flops and other open toed shoes are acceptable during a laboratory investigation during the hot summer months.

a)

True

b)

False

49.

Which of the following should NOT be worn during a lab investigation?

a)

Flip flops

b)

Dangling jewelry

c)

Loose, long hair

d)

All of the above

50.

Long hair in the laboratory must be

a)

cut short.

b)

tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.

c)

always neatly groomed.

d)

held away from the experiment with one hand.

51.

It is okay to drink water from a beaker if it looks clean.

a)

True

b)

False

52.

Only report major injuries to your teacher.

a)

True

b)

False

53.

Which picture represent eye safety?

a)
b)
c)
d)
54.

Which of the following hazard symbols means flammable?

a)

A

b)

B

c)

C

d)

D

55.
a)
smock
b)
apron
c)
cover up
d)
goggles
56.

........................ are quantities that can be measured.

a)

Physical properties

b)

Physical quantities

c)

Measurements

d)

Units of measurement

57.

Which of the following is NOT an example of fundamental quantity?

a)

length

b)

mass

c)

volume

d)

temperature

58.

Which of the following is an example of derived quantity?

a)

length

b)

mass

c)

density

d)

temperature

59.

......................... is a measure of the quantity of matter in a body.

a)

Mass

b)

Length

c)

Volume

d)

Density

60.

......................... is the distance between two specified points.

a)

Mass

b)

Length

c)

Volume

d)

Density

61.

......................... is the amount of space an object occupies.

a)

Mass

b)

Length

c)

Volume

d)

Density

62.

Choose the correct SI unit and symbol for mass.

a)

kilogram = kg

b)

metre = m

c)

Kelvin = K

d)

second = s

63.

Choose the correct SI unit and symbol for length.

a)

kilogram = kg

b)

metre = m

c)

Kelvin = K

d)

second = s

64.

Cubic centimetre (cm^3), litre (l) and millilitre (ml) are other units for .........................

a)

mass

b)

volume

c)

length

d)

density

65.

Which of the following instruments is used to measure volume?

a)
b)
c)
d)
66.

Which of the following instruments is used to measure lengths that are greater than 1 m or lengths that are curved?

a)

metre rule

b)

vernier caliper

c)

measuring tape

67.

Which of the following instruments is used to measure mass?

a)

metre rule

b)

vernier caliper

c)

measuring cylinder

d)

balance

68.

Which of the following instruments is used to measure short lengths and diameters of objects of up to 10 cm?

a)

metre rule

b)

vernier caliper

c)

measuring tape

69.

What is this instrument called?

a)

vernier caliper

b)

metre rule

c)

triple beam balance

d)

retractable measuring tape

70.

What do you call the curvature of the liquid in the container?

a)

liquid level

b)

curved line

c)

parallax

d)

meniscus

71.

When reading the volume, where do you place your eyes to avoid parallax error?

a)

Place your eyes at the same level as the bottom of the meniscus.

b)

Place your eyes higher than the bottom of the meniscus.

c)

Place your eyes lower than the bottom of the meniscus.

72.

How do you measure the volume of regularly shaped solids?

a)

Use the right formulae involving measurements of different lengths.

b)

Use the method of displacement of a liquid.

73.

Based on the picture, what is being measured using the displacement can and measuring cylinder?

a)

the volume of a regularly shaped solid

b)

the volume of an irregular solid

c)

the mass of a regularly shaped solid

d)

the mass of an irregular solid

74.

The smallest division on the metre rule is ............... cm.

a)

0.1

b)

0.01

c)

1.0

d)

0.001

75.

When molecules of matter are heated to their boiling point, energy pulls them apart from one another so they no longer have contact. The

______ molecules vaporize and become vapor molecules.

a)

solid

b)

liquid

c)

gas

76.

Which of the following best describe gas particles?

a)

almost no intermolecular forces

b)

closely packed in an orderly arragement

c)

vibrate in fixed position

d)

move slowly

77.

Suppose you have three identical test tubes that contain equal masses of a solid, liquid, and gas form of the same substance. Which form of the substance has the largest volume and why?

a)

Gas: It expands to fill the container

b)

Liquid: It takes the shape of the container

c)

Solid: It has the hardest surface.

d)

None: All of them have the same volume

78.

A ________ is a state of matter in which atoms or molecules do not have enough energy to move.

a)

liquid

b)

solid

c)

gas

79.

Which of the following best explains why solids do not change much when pressure is applied to them?

a)

The particles in a solid have large spaces between them.

b)

The particles in a solid keep vibrating.

c)

The particles in a solid are packed very close to each other.

d)

The particles of solid have weak intermolecular forces.

80.

Which substance does not have a definite shape, color, or texture?

a)

milk

b)

air

c)

metal

d)

grass

81.

In which state of matter are particles spread farthest apart from one another?

a)

gas

b)

liquid

c)

solid

82.

Compared to gases, liquids can be easily compressed.

a)

FALSE

b)

TRUE

83.

Which of the following is NOT true about liquid?

a)

flows and diffuses slowly

b)

has definite volume

c)

no definite shape

d)

no intermolecular force

84.

Existence of a substance as a solid or a gas largely depends on:

a)

intermolecular forces

b)

thermal energy

c)

temperature

d)

all of the choices

85.

Liquids possess definite volume, but not shape.

a)

FALSE

b)

TRUE

86.

The volume of solids cannot be changed due to the strong particle attraction.

a)

FALSE

b)

TRUE

87.

How will freezing the liquid affect its mass?

a)

Freezing the liquid will increase its mass.

b)

Freezing the liquid will decrease its mass.

c)

Freezing the liquid will not change its mass.

88.

Which of the following statements is NOT TRUE about gas?

a)

It has no definite shape.

b)

Its particles have limited motion.

c)

It can be compressed.

d)

It has the ability to flow.

89.

Which of the following pairs is FALSE?

a)

liquid: nearly imcompressible

b)

gas: exerts pressure

c)

gas: diffuses easily

d)

solid: can be compressed

90.

Which of the following is NOT an assumption of the Particle Nature Model?

a)

Particles of matter have spaces between them.

b)

Particles of matter are in motion.

c)

All matter is made up of particles.

d)

Adding heat to matter makes the particles move slower.

91.

________ particles slide past each other.

a)

Solid

b)

Liquid

c)

Gas

92.

Gas particles are in constant, chaotic motion.

a)

FALSE

b)

TRUE

93.

Smelling perfume from a distance shows that

a)

gases exert pressure.

b)

gases have no definite shape and volume.

c)

gases can be compressed

d)

gases diffuse easily.

94.

It is the resistance of a liquid to flow.

a)

adhesion

b)

diffusion

c)

surface tension

d)

viscosity

95.
Molecules are far apart and are in constant motion.
a)
Solid
b)
Liquid
c)
Gas
96.
Molecules change position easily and slide past one another.
a)
Solid
b)
Liquid
c)
Gas
97.
Molecules move, but they only vibrate in place.
a)
Solid
b)
Liquid
c)
Gas
98.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
99.

Phase changes are

a)

a physical change

b)

a chemical change

100.

When when kinetic energy is lost, this state condenses into a liquid and the molecules slow down.

a)

Solid

b)

Liquid

c)

Gas

101.

When kinetic energy is lost, this state freezes into a solid and the molecules slow down.

a)

Solid

b)

Liquid

c)

Gas

102.

What is it called when a solid turns directly into a gas?

a)

Sublimation

b)

Condensation

c)

Liquid

103.
Deposition is the opposite of sublimation.
a)
True
b)
False
104.

All phase changes (changing states) requires energy to be gained or lost.

a)

True

b)

False

105.

Evaporation is . . . .

a)

gas to liquid

b)

liquid to gas

c)

gas to solid

d)

solid to liquid

106.

Examine the image. Which arrow shows the process of condensation?

a)

arrow A

b)

arrow B

c)

arrow C

d)

arrow D

e)

none of the arrow choices

107.
What is the change from a Solid to a Gas due to the gaining of energy?
a)
Condensation
b)
Vaporization
c)
Sublimation
d)
Deposition
108.

Examine the image. Arrow B shows the process of . . .

a)

melting

b)

deposition

c)

freezing

d)

sublimation

109.

The measurement of average KINETIC ENERGY of molecules in a substance is it's

a)

Deposition

b)

Temperature

c)

Sublimation

d)

Condensation

110.

which of these are true of mass and weight?

a)

weight is measured in grams

b)

Mass is measured in grams

c)

weight is the amount of matter in a substance

d)

mass is the amount of matter in a substance

e)

weight is a force

111.

What are the units of weight?

a)

Kilogram

b)

Newtons

c)

Grams

d)

Pascals

112.

Which unit of length would be best to measure the distance between 2 cities?

a)

centimetres

b)

millimetres

c)

kilometres

d)

metres

113.

The unit does g stand for (a)  

114.

Which of these units are measures of length?

a)

millimetres

b)

metres

c)

kilometres

d)

kilograms

e)

millilitres

115.

10mm is equal to

a)

1cm

b)

1m

c)

1dm

d)

10cm

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