Free Printable Review October 8

1.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

WHAT IS THE INDEPENDENT VARIABLE IN THIS EXPERIMENT?

a)

Air pressure in the tyres

b)

Mileage of the car (miles per liter of fuel)

c)

None of the above

2.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

WHAT IS THE DEPENDENT VARIABLE IN THIS EXPERIMENT?

a)

Air pressure in the tyres

b)

Mileage of the car (miles per liter of fuel)

c)

None of the above

3.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

WHAT TYPE OF HYPOTHESIS IS BEING SHOWN IN THIS SCENARIO?

a)

hypothesis of AMOUNTS

b)

hypothesis of PRESENCE/ABSENCE

c)

hypothesis of TYPES

d)

none of the above

4.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

HOW MANY TEST GROUP/S IS/ARE INCLUDED IN THIS SCENARIO?

a)

0

b)

1

c)

2

d)

3

e)

4

5.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

HOW MANY CONTROL GROUP/S IS/ARE INCLUDED IN THIS SCENARIO?

a)

0

b)

1

c)

2

d)

3

e)

4

6.

Cars give better fuel mileage when the air pressure in the tires is accurate. Mohammed wanted to test if this was true, so he filled the gasoline tank in his car, inflated the tires to the recommended air pressure, drove the car, and then calculated the miles per litre of fuel. The next time he filled the car’s tank with gasoline but reduced the pressure of air in the tires by 50% . Once again he drove the car over the same roads and calculated the miles per litre of fuel. He repeated the process a third time, but this time with an air pressure 50% more than that recommended.

CONTROL GROUP DO NOT INCLUDE INDEPENDENT VARIABLE. IS THERE A GROUP IN THIS EXPERIMENT WITHOUT INDEPENDENT VARIABLE (AIR PRESSURE)?

a)

Yes

b)

No

c)

Maybe? ... oh i have to study more =)

7.

What would be the best general research question for this experiment?

a)

Will baking soda affect the baking of bread?

b)

What effects the bread?

c)

What is the effect of adding baking soda when baking bread?

d)

Does adding baking soda cause bread to rise?

8.

What type of experiment is this?

a)

Testing of types

b)

Testing presence/absence

c)

Testing amounts

d)

None of the above

9.

After analyzing the data collected, Salama concludes that:

a)

As the quantity of baking soda added increases, the bread height increases.

b)

As the quantity of baking soda added increases, the bread height decreases.

c)

The bread rises as the quantity of baking soda is increased but eventually stops rising.

d)

Baking soda has no effect on the rising of bread.

10.

Based on the graph, identify the independent variable.

a)

Amount of baking soda (g)

b)

Height of the bread (cm)

11.

Based on the graph, identify the dependent variable.

a)

Amount of baking soda (g)

b)

Height of the bread (cm)

12.

Based on the graph, what is the unit of measurement of the independent variable?

a)

centimeters

b)

grams

13.

Based on the graph, what is the unit of measurement of the dependent variable?

a)

centimeters

b)

grams

14.

Based on the data collected, what would be the height of the bread, if Salama added 7.5 g of baking soda to the dough?

a)

5 cm

b)

15 cm

c)

4 cm

d)

cannot be determined

15.

Identify an error made by Salama when representing the data graphically.

a)

unit of measurement of dependent variable is missing

b)

unit of measurement of independent variable is missing

c)

title of the graph is missing

d)

data should be presented suing column chart

e)

data should be presented using pie chart

16.

Find the MODE: 1, 2, 3, 2, 3, 4, 3, 4, 5, 5

a)

1

b)

2

c)

3

d)

4

e)

5

17.

Find the MEDIAN: 1, 2, 3, 2, 3, 4, 3, 4, 5, 5

a)

3

b)

3 and 4

c)

4

d)

3 + 4 = 7

e)

(3+4) / 2 = 3.5

18.

Find the MEAN: 1, 2, 3, 2, 3, 4, 3, 4, 5, 5

a)

3

b)

3.2

c)

3.5

d)

4

e)

32

19.

How to calculate for the percentage of the response - SOMETIMES?

a)

(132 + 1200 ) x 100% = 11%

b)

(132 / 1200 ) + 100% = 11%

c)

(132 / 1200 ) x 100% = 11%

d)

(( 132 + 852 + 216 ) / 1200 ) x 100% = 11%

20.

Based on this table, how many test group/s is/ are present?

a)

0

b)

1

c)

2

d)

3

e)

4

21.

Based on this table, how many control group/s is/ are present?

a)

0

b)

1

c)

2

d)

3

e)

4

22.

Based on this table, what kind of correlation we can expect to see once we convert this into a graph?

a)

negative correlation

b)

no correlation

c)

positive correlation

d)

3

e)

4

23.

Based on this table, which type of chart or graph should we use?

a)

column chart

b)

line graph

c)

pie chart

d)

3

e)

4

24.

Preservatives such as salt help keep food fresh. Noura made 10 loaves of bread using the same recipe and baking method. In five of them, she used no salt. In the other five she used salt. After the loaves were baked, she placed each of the loaves in a plastic bag and left them close together on the counter in her kitchen. Each day she looked at them to see if any mold had started to grow.

IDENTIFY THE INDEPENDENT VARIABLE IN THIS EXPERIMENT.

a)

presence/absence of salt on bread

b)

growth of mold

c)

bread loaves baked without salt

d)

bread loaves baked with salt

e)

none of the above

25.

Preservatives such as salt help keep food fresh. Noura made 10 loaves of bread using the same recipe and baking method. In five of them, she used no salt. In the other five she used salt. After the loaves were baked, she placed each of the loaves in a plastic bag and left them close together on the counter in her kitchen. Each day she looked at them to see if any mold had started to grow.

IDENTIFY THE DEPENDENT VARIABLE IN THIS EXPERIMENT.

a)

presence/absence of salt on bread

b)

growth of mold

c)

bread loaves baked without salt

d)

bread loaves baked with salt

e)

none of the above

26.

Preservatives such as salt help keep food fresh. Noura made 10 loaves of bread using the same recipe and baking method. In five of them, she used no salt. In the other five she used salt. After the loaves were baked, she placed each of the loaves in a plastic bag and left them close together on the counter in her kitchen. Each day she looked at them to see if any mold had started to grow.

IDENTIFY THE TEST GROUP IN THIS EXPERIMENT.

a)

presence/absence of salt on bread

b)

growth of mold

c)

bread loaves baked without salt

d)

bread loaves baked with salt

e)

none of the above

27.

Preservatives such as salt help keep food fresh. Noura made 10 loaves of bread using the same recipe and baking method. In five of them, she used no salt. In the other five she used salt. After the loaves were baked, she placed each of the loaves in a plastic bag and left them close together on the counter in her kitchen. Each day she looked at them to see if any mold had started to grow.

IDENTIFY THE CONTROL GROUP IN THIS EXPERIMENT.

a)

presence/absence of salt on bread

b)

growth of mold

c)

bread loaves baked without salt

d)

bread loaves baked with salt

e)

none of the above

28.

Preservatives such as salt help keep food fresh. Noura made 10 loaves of bread using the same recipe and baking method. In five of them, she used no salt. In the other five she used salt. After the loaves were baked, she placed each of the loaves in a plastic bag and left them close together on the counter in her kitchen. Each day she looked at them to see if any mold had started to grow.

IDENTIFY THE TYPE OF HYPOTHESIS USED IN THIS EXPERIEMENT.

a)

amounts

b)

presence/absence

c)

types

d)

none of the above

29.

Two different cars

( A- SUV, B- Sports car )

are traveling at 120 km/h.

At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

WHICH KIND OF HYPOTHESIS/TESTING WAS USED IN THIS EXPERIMENT?

a)

amounts

b)

presence/absence

c)

types

30.

Two different cars

( A- SUV, B- Sports car )

are traveling at 120 km/h.

At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

HOW MANY CONTROL GROUP/S USED IN THIS EXPERIMENT?

a)

0

b)

1

c)

2

d)

3

e)

4

31.

Two different cars

( A- SUV, B- Sports car )

are traveling at 120 km/h.

At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

HOW MANY TEST GROUP/S USED IN THIS EXPERIMENT?

a)

0

b)

1

c)

2

d)

3

e)

4

32.

Two different cars

( A- SUV, B- Sports car )

are traveling at 120 km/h.

At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

IDENTIFY THE INDEPENDENT VARIABLE IN THIS EXPERIMENT.

a)

distance it takes for the car to stop on hitting the brakes

b)

size of the car

c)

type of car

33.

Two different cars

( A- SUV, B- Sports car )

are traveling at 120 km/h.

At a certain point, both cars slam on the brakes. The distance it takes for each car to stop is then measured.

IDENTIFY THE DEPENDENT VARIABLE IN THIS EXPERIMENT.

a)

distance it takes for the car to stop on hitting the brakes

b)

size of the car

c)

type of car

34.

Hamda wants to buy a car. She gathers statistics about three different cars. She complies the data considering speed, user rating, mileage and safety. The results are as shown in the graph below:

Which car should Hamda go for if she DOES NOT give high importance for safety?

a)

Audi

b)

Fiat

c)

Ford

35.

The graph above indicates the percentage intake of various food groups for UK males at different life periods. S

Q: The consumption of pulses is high among older people.

a)

True

b)

False

36.

The graph above indicates the percentage intake of various food groups for UK males at different life periods. S

Q: Boys and young men consume more of………………..and……………..compared to older men.

a)

dairy and vegetables

b)

dairy and meat

c)

vegetables and pulses

d)

meat and pulses

37.

The graph above indicates the percentage intake of various food groups for UK males at different life periods. S

Q: Pulses and dairy are good source of protein. Which age group is likely to suffer the most from protein deficiency (lack)?

a)

0-24

b)

25-49

c)

above 50

38.

Which statement is an appropriate conclusion drawn from the gathered data?

a)

As the temperature increases the bacterial growth decreases

b)

As the temperature increases the bacterial growth increases

c)

Temperature does not affect the bacterial growth

d)

The bacterial growth is stable at all temperatures

39.

The growth of bacteria was highest during __________

a)

0-2 days

b)

2-4 days

c)

2-3 days

d)

3-4 days

40.

Which among the following statements is the most appropriate conclusion for this experiment?

a)

Fresh water is richer in oxygen compared to sea water

b)

Sea water is richer in oxygen compared to fresh water

c)

Sea water can hold more oxygen compared to fresh water

d)

Oxygen content in sea water and fresh water is the same.

41.

Identify the error in this graph

a)

The graph does not have a proper scale

b)

The units of the independent variable are missing.

c)

The units of the dependent variable are missing.

Review October 8

Total questions: 41

Worksheet time: 48mins

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