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2nd Year (Recap of 1st Year Topics)

Total questions: 99

Worksheet time: 50mins

Name
Class
Date
1.

What do we take in when we inhale?

a)

carbon dioxide

b)

oxygen

c)

lungs

2.

What do we let out when we exhale?

a)

oxygen

b)

Carbon dioxide

c)

lungs

3.
Inhale!!!!
Your lungs are ___________  air
a)
taking in
b)
letting out
4.
EXHALE!!!
My lungs are __________________ air. 
a)
taking in
b)
letting out
5.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
6.
What are the main organs of gas exchange in the respiratory system?
a)
diapragm
b)
lungs
c)
trachea
d)
bronchi
7.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
8.
The two main branches from the trachea (one to each lung)
a)
bronchi
b)
alveoli
c)
capillaries
d)
bronchioles
9.
Name the organ label # 6. 
a)
alveoli 
b)
bronchi 
c)
trachea 
d)
lungs 
10.

The "windpipe" is also called the...

a)

trachea

b)

bronchi

c)

bronchioles

d)

alveoli

11.

The lung is in letter ....

a)

a

b)

b

c)

c

d)

d

e)

e

12.

The diaphragm is in letter ....

a)

a

b)

b

c)

c

d)

d

e)

e

13.

The organs in letter d and e are ....

a)

larynx and bronchi

b)

pharynx and bronchioles

c)

trachea and bronchioles

d)

trachea and bronchi

14.

The organs in letter a, b, and c are ....

a)

oral cavity, larynx, and pharynx

b)

nasal cavity, larynx, and trachea

c)

nasal cavity, pharynx, and larynx

d)

oral cavity, pharynx, and larynx

15.

The other name for trachea is ....

a)

food pipe

b)

wind pipe

c)

lung

d)

heart

16.

The respiratory organ in the picture is called ....

a)

lung

b)

trachea

c)

bronchioles

d)

bronchi

17.

What is the name of the large muscle that contracts and relaxes to move air in and out of the lungs?

a)

Bicep

b)

Alveoli

c)

Diaphragm

d)

Trachea

18.

What sort of blood vessels are found covering the alveoli?

a)

Veins

b)

Arteries

c)

Capillaries

d)

Diaphragm

19.

What is the name of the bones that provide protection to the lungs?

a)

Ribs

b)

Diaphragm

c)

Alveoli

d)

Lungs

20.

What happens to the diaphragm when you breathe in?

a)

It contracts and moves up

b)

It contracts and moves down

c)

It relaxes and moves up

d)

It relaxes and moves down

21.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

22.

What is the DEPENDENT variable (effect) in this experiment?


"Does eating breakfast improve test scores?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

23.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

24.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

25.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

26.

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be the DEPENDENT VARIABLE?

a)

The time it takes for each object to hit the ground.

b)

The size of each object.

c)

The type of object you use.

d)

The height you drop the object from

27.

Why do we use graphs in science?

a)

to record and display data

b)

to show trends in data

c)

to predict what will happen if we extend the experiment

d)

all of these are correct

28.

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

a)

She used different types of seeds/plants.

b)

The plants are in different pots.

c)

She did not plant very many plants.

d)

Seed age might not make a difference.

29.

What is the manipulated variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

30.

What might you measure using millimeters?

a)

The distance to school.

b)

An insect.

c)

The length of a car.

d)

The length of a football field.

31.

What would you use a RULER for?

a)

To measure length.

b)

To measure mass.

c)

To measure volume.

d)

To measure time.

32.

What might you use a thermometer for?

a)

To measure distance.

b)

To measure temperature

c)

To measure time

d)

To measure weight

33.

The metric system is a measurement system based on the number 12.

a)

false

b)

true

34.

Mass is a measure of the amount of space in an object.

a)

true

b)

false

35.

What do we use to measure time?

a)

A thermometer.

b)

A stopwatch.

c)

A ruler.

d)

Tongs.

36.

Looking at the photo, what is the mass of the object?

a)

48.5 g

b)

480.5 g

c)

40.4005 g

d)

485 g

37.

Based on the photo, what is the volume of the liquid?

a)

35 mL

b)

24 mL

c)

25 mL

d)

30 mL

38.
How much water is in the graduated cylinder
a)
40
b)
30
c)
35
d)
36
39.
What is this?
a)
Balance
b)
Triple beam balance
c)
Mass
d)
Graduated cylinder
40.
What measurement are we finding when we use a graduated cylinder?
a)
mass
b)
volume
c)
length
d)
weight 
41.
What is the length of the straw?
a)
8 cm 
b)
0 cm 
c)
7 cm 
d)
1 cm 
42.

A graduated cylinder contains exactly 60 mL of water. A rock was dropped into the cylinder of water. The water level rose to 86 mL. What is the volume of the rock?

a)

86 mL

b)

60 mL

c)

146 mL

d)

26 mL

43.

What is the basic unit of length in the metric system?

a)

gram

b)

meter

c)

Liter

d)

cm3

44.

What is the basic unit of mass in the metric system?

a)

gram

b)

meter

c)

Liter

d)

cm3

45.
Calculate the Volume
a)
410 cm3
b)
420 cm3
c)
402 cm3
d)
401 cm3
46.
What is the volume of this prism?
a)
16 cubic cm
b)
36 cubic cm
c)
144 cubic cm
47.
Find the AREA of this figure.
a)
160 square feet
b)
160 feet
c)
160
d)
1600 feet
48.

Mass is a measure of the amount of space in an object.

a)

true

b)

false

49.

Find the VOLUME of the rectangular solid shown here.

a)

12 cm3

b)

18 cm3

c)

8 cm3

d)

10 cm3

50.
What is the length of the red line?
a)
2.0 cm
b)
2.3 cm
c)
2.1 cm
d)
3.0 cm
51.
_______ is a measure of the amount of matter in an object.   
a)
mass 
b)
density
c)
 weight
d)
volume
52.
 _______ is the amount of space an object or substance takes up.   
a)
matter
b)
mass
c)
 volume
d)
 weight
53.

Area = length x ?

a)

width

b)

mass

c)

volume

d)

cm

54.

Is this set of results...

a)

Accurate and precise

b)

Not accurate and not precise

c)

Accurate but not precise

d)

Not accurate but precise

55.

Name this instrument

a)

Callipers

b)

Graduated cylinder

c)

Opisometer

d)

Metre stick

56.

The results in this picture are

a)

Accurate and precise

b)

Not accurate and not precise

c)

Accurate but not precise

d)

Not accurate but precise

57.

1.      A measure of the amount of matter in an object is ...

a.     mass

b.     weight

c.     volume

d.     density

a)

a

b)

b

c)

c

d)

d

58.

1.     A measure of the force of gravity is...

a.     Mass

b.     Weight

c.     Volume

d.     Density

a)

a

b)

b

c)

c

d)

d

59.

What is international unit of mass?

a.     Newton

b.     Kilograms

c.     Litress

d.     Metres

a)

a

b)

b

c)

c

d)

d

60.

Why does stone sink while paper doesn’t?

a.     density stone > density paper

b.     density paper > density stone

c.     density paper = densit stone

d.     density stone - density paper

a)

a

b)

b

c)

c

d)

d

61.

What is international unit of density?

a.     kg/m3

b.     gr/cm

c.     kilogram

d.     litres

a)

a

b)

b

c)

c

d)

d

62.

The volume of an object is 0,2m3 . if its mass is 8 kg, then the density is....

a.     4 kg/m3

b.     40 kg/m3

c.     16 kg/m3

d.     1,6 kg/m3

a)

a

b)

b

c)

c

d)

d

63.

The volume of an object is 1 m3 . If the density is 0,5 kg/m3 what its mass?

a.     0,5 kg

b.     5 kg

c.     2 kg

d.     0,2 kg

a)

a

b)

b

c)

c

d)

d

64.

The amount of space an object takes up.

a)

Volume

b)

Density

c)

Mixture

d)

Mass

65.

How tightly packed matter is in an object.

a)

Volume

b)

Density

c)

Mass

d)

Mixture

66.

What is liquid volume measured in?

a)

kilograms and grams

b)

litres and millilitres

c)

litres and grams

d)

mililitres and kilograms

67.
A measurement of the amount of matter in an object. 
a)
Gravity
b)
Weight
c)
Mass
d)
Speed
68.

Which of the following is the correct arrangement of particles in solid?

a)

Particles are widely separated from one another.

b)

The particles are packed slightly less closely together compared to a solid.

c)

The particles are packed closely together.

d)

particles are chemically combined

69.

What is being described?

1- I am the degree of hotness and coldness of an object

2- I am the interval between two events.

a)

1- length

2- time

b)

1-time

2- mass

c)

1- temperature

2- time

d)

1-heat

2-length

70.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
71.

The second is the SI unit used to measure time.

a)

true

b)

false

72.

What is true of volume? Mark all that apply.

a)

Amount of space an object takes up.

b)

You calculate it by multiplying width, length and height.

c)

Its unit is cubic centimeter.

d)

To find the density of an object.

73.

A meter (m) is the basic SI unit used for measuring mass.

a)

false

b)

true

74.

Based on the photo, what is the volume of the liquid?

a)

35 mL

b)

24 mL

c)

25 mL

d)

30 mL

75.

Find the VOLUME of the rectangular solid shown here.

a)

12 cm3

b)

18 cm3

c)

8 cm3

d)

10 cm3

76.

SI units for area are

a)

cm

b)

cm2

c)

cm3

77.

From where do you read volume from a graduated cylinder, choose 2 options that apply

a)

Bottom of the meniscus

b)

At eye level

c)

Top of meniscus

d)

From above

78.

Density = mass ÷ ?

a)

Volume

b)

Matter

c)

Area

79.

What is a Hypothesis

a)

Research

b)

Observation

c)

Educated guess

d)

None of the above

80.
A cell is...
a)
the basic unit of structure and function in living organism
b)
an organism
c)
a basic part of everything that we see
d)
found only in animals, not plants
81.
Which of the following are NOT found in animal cells
a)
chloroplasts and cytoplasm
b)
chloroplasts and cell wall
c)
cell wall and cell membrane
d)
mitochondria and nucleus
82.
The nucleus is like the ____________ of the cell.
a)
foot
b)
hand
c)
stomach
d)
brain
83.

Which of the following converts food into energy for the cell?

a)

vacuole

b)

mitochondria

c)

cytoplasm

d)

cell membrane

84.
What do vacuoles do? 
a)
They actually do not have an important role
b)
They protect the cell
c)
They are the brain of the cell
d)
storage area for cells; water storage in plants 
85.
Which of the following, found ONLY in plant cells, provides structure?
a)
cell wall
b)
chloroplast
c)
mitochondria
d)
vacuole
86.

What do we call a well supported explanation of how things happen?

a)

a guess

b)

a hypothesis

c)

a theory

d)

a law

87.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
88.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
89.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
90.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
91.

What is the volume of the irregular object?

a)

10 cm3

b)

10 mL

c)

5 mL

d)

5 cm3

92.

What is the volume of the irregular object?

a)

1 mL

b)

1 cm3

c)

5 cm3

d)

1 mL

93.
What is measured with a graduated cylinder?
a)
Passage of time
b)
Distance from one thing to another
c)
Weight of an object
d)
Volume of liquid
94.

What is the formula for measuring the volume of a regular solid?

a)

length x width

b)

length x width x height

c)

water displacement method

d)

width x height

95.

The water displacement method is the only way to measure the volume of

a)

a regular solid

b)

an irregular solid

c)

a liquid

d)

a gas

96.

What is the most important thing in science?

a)

evidence

b)

discoveries

c)

experiments

d)

explosions

97.

What is an experiment?

a)

A report by a scientist

b)

The answer to a question

c)

Something unknown

d)

A way to test an idea

98.

Explain how density is an important factor in each of the following:

a) Flotation

b) Substance Identification

c) Design of objects

4 lines
99.

Put the following in order of density:

Lego block, Water, Cork, Grape, Syrup, Oil

4 lines

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