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Scientific Enquiry

Total questions: 100

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

The dependent variable is the variable that will be changed during an investigation.

a)

True

b)

False

2.

Independent variable is usually the variables that we will keep constant.

a)

True

b)

False

3.

Controlled variable

a)

will be measured/observed during an experiment

b)

will be changed during an experiment

c)

will be kept constant during an experiment

4.

What is the independent variable in the diagram above?

a)

surface

b)

type of surface

c)

friction

d)

size of friction

5.

Which of the following is not a type of variable?

a)

Independent variable

b)

Controlled variable

c)

Measured variable

d)

Dependent variable

6.

Describe the result shown.

a)

Accurate and Precise

b)

Not Accurate and Precise

c)

Accurate and Not Precise

d)

Not Accurate and Not Precise

7.

Describe the result shown.

a)

Accurate and Precise

b)

Not Accurate and Precise

c)

Accurate and Not Precise

d)

Not Accurate and Not Precise

8.

Describe the result shown.

a)

Accurate and Precise

b)

Not Accurate and Precise

c)

Accurate and Not Precise

d)

Not Accurate and Not Precise

9.

Describe the result shown.

a)

Accurate and Precise

b)

Not Accurate and Precise

c)

Accurate and Not Precise

d)

Not Accurate and Not Precise

10.

State one change that you would make to the table of results shown.

a)

The decimal places are consistent and should not be changed

b)

The units should be written beside all the values

c)

The units should be written in the table headings

d)

The heading of the table should be interchanged.

11.

What do you do if you have an anomalous result?

a)

Include the result in when taking an average

b)

Exclude the result when taking an average

c)

Edit and change the result without anyone knowing

12.

What is the first step in a scientific enquiry?

a)

Question

b)

observation

c)

conclusion

d)

experiment

13.

How can we make an experiment fair?

a)

by keeping all the factors same.

b)

by keeping all the factors different

c)

by keeping all the factors same except one

d)

by keeping all the factors same except two

14.

Which one is the last step in a scientific enquiry

a)

observation

b)

conclusion

c)

experiment

d)

fair test

15.

Which is true about hypothesis?

a)

A. It may reject or accepts your prediction.

b)

B. It is an educated guess or possible answer to the question.

c)

C. It summarizes the result on the experiment.

d)

D. It is the final answer to the question.

16.

Which is the second step in scientific method?

a)

A. Making a conclusion

b)

B. Identifying the problem

c)

C. Formulating hypothesis

d)

D. Do background research

17.

Maria wants to know if tomato seed grows faster than a monggo seed. She then ask her father, which is a farmer about her question. Which steps of scientific method does Maria performs?

a)

A. Identify the problem and make a conclusion.

b)

B. Identify the problem and make a hypothesis.

c)

C. Identify the problem and conduct an experiment.

d)

D. Identify the problem and do background research.

18.

The scientific method starts when you ___________ about something that you observe.

a)

A. ask a question

b)

B. do background research

c)

C. construct hypothesis

d)

D. construct a conclusion

19.

All hypothesis are accepted.

a)

TRUE

b)

FALSE

20.

What are you going to do to test the hypothesis?

a)

A. Do background research

b)

B. Do an experiment

c)

C. Construct a conclusion

d)

D. Both A and C are correct

21.

It is also known as manipulating variable. The condition you change during the investigation.

a)

A. Control variable

b)

B. Dependent variable

c)

C. Independent variable

d)

D. Responding variable

22.

Which step of the scientific method uses an "If...Then..." statement to provide a possible answer to the question?

a)

Purpose

b)

Research

c)

Hypothesis

d)

Conclusion

23.

Which type of variable must always stay the same in order to make the experiment accurate?

a)

Controlled Variable

b)

Manipulated Variable

c)

Dependent Variable

d)

Responding Variable

24.
Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the dependent variable. 
a)
amount of water
b)
temperature of water
c)
size of ice cube
d)
height of ice cube
25.
Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the independent variable. 
a)
amount of water
b)
temperature of water
c)
size of ice cube
d)
height of ice cube
26.

When we investigate the rate of reaction we are looking at the...

a)

amount of product formed

b)

speed of reaction

c)

concentration of reacting particles

d)

combining reactants with products

27.
Increase in temperature of the reactants can do one of the following
a)
Slow collision frequency
b)
Allow less effective collision between the particles
c)
Neutralise the reaction
d)
increase collision between the particles thus increasing the rate.
28.
Which factors increase the rate of a reaction.
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
all of these
29.

How could we make this reaction happen more quickly?

a)

Decrease the concentration of the acid

b)

crush the chalk to increase the surface area

c)

Put the test tube in an ice bath

30.

Grinding a effervescent tablet into powder increases the rate of reaction due to increased

a)

concentration

b)

surface area

c)

temperature

d)

reactants

31.

Increasing the temperature gives particles more __________.

a)

Time

b)

Energy

c)

Space

d)

Frequency

32.

As the frequency of ______________ increases, the rate of reaction increases.

a)

Time

b)

Reactions

c)

Collisions

d)

Reactants

33.

Adding a catalyst ___________ the activation energy.

a)

Raises

b)

Lowers

c)

Doesn't affect

d)

Inreases

34.

The minimum amount of energy needed for colliding particles to react is called

a)

Chemical Energy

b)

Kinetic Energy

c)

Activation Energy

d)

Potential Energy

35.

Icing sugar has a greater ______ _____ than a solid cube of

sugar.

a)

Surface Area

b)

Catalyst

c)

Temperature

36.
Identify where the reaction has finished
a)
A
b)
B
c)
C
d)
D
37.
A substance that increases speed of chemical reaction without being being changed is called:
a)
Catalyst
b)
Acid
c)
Base
d)
pressure
38.
The amount of a substance in a given volume.
a)
concentration
b)
temperature
c)
surface area
d)
catalyst
39.
Grinding a seltzer tablet into powder increases the rate of reaction due to increased
a)
concentration
b)
surface area
c)
temperature
d)
reactants
40.
Exposing more particles for collisions is an increase in 
a)
concentration
b)
surface area
c)
temperature
d)
catalyst
41.
Increasing the concentration increases the speed of reaction by
a)
lowering activation energy
b)
increasing collisions
c)
speeding up the reactants
d)
exposing more reactant
42.
This slows down or even stops a chemical reaction.
a)
de-activator
b)
catalyst
c)
enzyme
d)
inhibitor
43.

A temperature increase causes the particles to ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

44.
What is the rate of reaction?
a)
How fast a reaction is 
b)
How big a reaction is
c)
How loud a reaction is
d)
How much gas a reaction produces
45.

Which out of the following is NOT a factor that affects the rate of a reaction

a)

temperature

b)

concentration

c)

surface area

d)

volume

e)

catalysts

46.

How does a catalyst work in speeding up a reaction?

a)

by lowering the activation energy (minimum energy needed for the reaction to take place)

b)

by giving the reactants more energy

c)

by increasing the number of reactant particles

d)

by increasing the temperature

47.
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?
a)
Red, because the activation energy is larger
b)
Blue, because the activation energy is lower
c)
both reaction progress at the same rate
48.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of particle collisions

d)

it increases the frequency of particle collisions

49.

How is this equipment being used to measure the rate of reaction?

a)

The gas syringe measures how much gas is produced in a certain time

b)

The reaction mixture will increase in volume in a certain time

50.

What must ALWAYS be measured to calculate the rate of reaction?

a)

Mass of product

b)

Mass of reactant

c)

Volume of gas produced

d)

Time

51.

When is a reaction rate fastest?

a)

At the start

b)

In the middle

c)

Towards the end

d)

It is the same rate all the way through

52.

How can the volume of a gas be measured?

a)

Beaker

b)

Measuring cylinder

c)

Gas syringe

d)

Volumetric Pipette

53.

How many birds are represented by the green sector?

a)

5

b)

20

c)

9

d)

13

54.

How many employees travelled by car to work?

a)

22

b)

8

c)

10

d)

12

55.

What is the maximum number of computers that someone said they had?

a)

8

b)

10

c)

4

d)

1

56.

How many times was the number 3 rolled?

a)

6

b)

2

c)

3

d)

4

57.
When was the greatest amount of shoppers at the store?
a)
10am
b)
1pm
c)
6pm
d)
2pm
58.
Between which two times was the greatest increase in number of shoppers?
a)
12pm and 1pm
b)
1pm and 2pm
c)
2pm and 3pm
d)
10am and 11am
59.

How many members planted at least 3 seeds?

a)

19

b)

36

c)

55

d)

72

60.

Which list has the players arranged from highest-scoring to lowest scoring?

a)

Dave, Kalid, Liza

b)

Dave, Liza, Kalid

c)

Kalid, Dave, Liza

d)

Kalid, Liza, Dave

61.

What kind of graph is this called?

a)

Circle graphg

b)

Line graph

c)

Pie chart

d)

Bar graph

62.

What is the independent variable in this graph?

a)

Tadpoles

b)

Year

c)

Frogs

d)

Number of tadpoles in the pond

63.

What type of graph shows change over time?

a)
b)
c)
d)
64.
Which runner won the race?
a)
A
b)
B
c)
C
65.
In which year did exactly 60 students have scholarships?
a)
2010
b)
2011
c)
2012
d)
2013
66.

Which month had the biggest difference between the high and low temperatures?

a)

January

b)

April

c)

October

d)

November

67.
What is this graph showing you?
a)
The worlds population is staying the same.
b)
The worlds population is going down (decreasing).
c)
The worlds population was growing but now is decreasing.
d)
The worlds population has been growing and will continue to grow. 
68.
After the refrigerator, which appliance is used the most on weekdays?
a)
Television
b)
Heater
c)
Lights
d)
Computer
69.

Why are graphs and charts important to analyze data?

a)

Graphs and charts are important to analyze data because we would never be able to know what is going on with the data.

b)

Graphs and charts are important to analyze data because teachers say they are important.

c)

Charts and graphs is something good to do because they are nice to look at.

d)

Charts and graphs allow a person to visualize data and find patterns and trends in the data.

70.
The Y axis is _______?
a)
Vertical
b)
Horizontal
c)
criss-cross
d)
diagonal
71.
On which day was hair length 23 cm?
a)
day 60
b)
day 90
c)
day 120
d)
day 150
72.

What is the independent variable on the graph (x-axis)?

a)

Metro Bicycle Shop Weekly Sales

b)

Bicycles Sold

c)

Types of Bicycles

73.

What is the dependent variable on the graph (y-axis)?

a)

Metro Bicycle Shop Weekly Sales

b)

Bicycles Sold

c)

Types of Bicycles

74.

It is used to measure the temperature of an object or a substance.

a)

barometer

b)

thermometer

c)

hygrometer

d)

milliliter

75.

Which laboratory apparatus would you use to measure 75ml of water accurately?

a)
b)
c)
d)
76.

The laboratory apparatus above are used to measure _____________ .

a)

mass

b)

length

c)

volume

d)

temperature

77.

Apparatus used for heating small quantity of chemicals

a)

Beaker

b)

Flask

c)

Test tube

d)

Gas jar

78.

Mention the use and the material from which it is made of.

a)

Plastic and for crushing solids

b)

Steel and for mixing chemicals

c)

Porcelain and for crushing and grinding solids

79.

Used to heat liquids for evaporation.

a)

mortar and pestle

b)

glass watch

c)

evaporating dish

d)

funnel

80.

What laboratory apparatus are you going to use if you want to pour liquids into containers with small openings?

a)

test tube

b)

evaporating dish

c)

glass funnel

81.

Name the use of the give picture.

a)

used for the measurement of an amount of a liquid

b)

mainly used to store and mix solutions

c)

used for transferring liquids from one container to another

82.

Ali would like to heat a test-tube containing chemical X over a Bunsen burner. How should Ali carry put the heating?

a)

Holding the test tube with his bare hands

b)

Holding the test tube with a piece of cloth

c)

Holding the test tube using a test tube holder

d)

Holding the test tube with tongs

83.

It is used to measure masses very precisely

a)

weighing scale

b)

burette

c)

dropper

d)

beam balance

84.

State the function of beam balance

a)

To measure mass

b)

To measure weight

c)

To measure distance

d)

To measure time

85.

What is the name of this apparatus?

a)

Beaker

b)

Measuring cylinder

c)

Pipette

d)

Test tube

86.

What is the name of this apparatus?

a)

Tripod

b)

Conical flask

c)

Pouring glass

d)

Filter funnel

87.
What is the hazard shown in this hazard sign?
a)
Fire
b)
Goku
c)
Flammable
d)
Inflammable
88.

Match the symbol to the correlating hazard


EXPLOSIVES

a)
b)
c)
d)
89.

This lab student is wearing her googles and an apron. But what is she doing wrong?

a)

Pointing the test tube toward her while heating it.

b)

She actually is doing everything correctly.

c)

Her loose hair is too close to the fire.

d)

Not paying attention

90.

What does this hazard symbol mean?

a)

Harmless to trees and fish

b)

Harmful to non living things

c)

Harmful to living things

d)

Harmless to non living things

91.

What does this hazard symbol mean?

a)

flammable

b)

oxidising

c)

hot

d)

explosive

92.

What does this hazard symbol mean?

a)

cross

b)

harmful / irritant

c)

sharp

d)

chemical

93.
a)
Poison/Toxic
b)
Bio Hazard
c)
Radioactive
d)
Corrosive
94.

What does this symbol indicate?

a)

Corrosive substances

b)

Wash your hands.

c)

Wear appropriate gloves.

d)

Bacteria are present.

95.

Some chemicals cause skin rash as they are ..........

a)

Poisonous

b)

flammable

c)

Irritant

d)

oxidizing

96.

Which picture represent eye safety?

a)
b)
c)
d)
97.
If you are not sure what to do during a lab activity:
a)
guess
b)
change lab partners
c)
ask a teacher
d)
just sit quietly and do nothing
98.
You should never ______ chemicals in the lab. 
a)
taste
b)
touch
c)
smell
d)
all of the above
99.

what is a hazard?

a)

Something that has the potential to cause harm

b)

The possibility that harm may occur

c)

Something that can make you fall over

100.

What does this symbol stand for?

a)

Flammable

b)

Oxidising

c)

Non-flammable

d)

Explosive

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