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3SCI3 FIRST TEN WEEK TEST 2022 TEACHER -SC

Total questions: 67

Worksheet time: 37mins

Name
Class
Date
1.

A star and all the objects that orbit it is called a

a)

Moon

b)

Solar system

c)

Galaxy

d)

satellite

2.

Which planet A or B, took the shortest time to transit the star?

(a)  

3.

Which planet, A or B, is the largest ?

(a)  

4.

The …… of the Earth causes the seasons.

(a)  

5.

A star and all the objects that orbit it is called a

a)

Moon

b)

Solar system

c)

Galaxy

d)

satellite

6.

Which list shows things in order of size starting from the smallest?

a)

galaxy, star, planet

b)

star, galaxy, planet

c)

star, planet, galaxy

d)

planet, star, galaxy

7.

Which statement best describes our current idea about the solar system?

a)

The planets all move in circular orbits around the Earth

b)

The planets all move in circular orbits around the Sun

c)

The planets all move in elliptical orbits around the Sun

d)

The planets all move in elliptical orbits around the Earth.

8.

Which statement is true about gravity? Gravity....

a)

gets less if two objects get closer together

b)

gets stronger if two objects get further apart

c)

gets less if two objects get further apart

d)

does not depend on distance

9.

Large lumps of ice, gases and dust that orbit the sun

a)

Moon

b)

Planet

c)

Star

d)

Comet

10.

How long does it take for the earth to complete one full rotation on it's own axis

a)

24 hours

b)

21 days

c)

365 days

d)

200 days

11.

How many billions of years ago did the big bang occur. You must give your answer to one decimal place.

(a)  

12.

Which object A,B,C or D has the smallest mass?

(a)  

13.
The part of the stamen that produces microspores that become pollen grains is the ___.
a)
anther
b)
pistil
c)
filament
d)
ovary
14.
The tip of the style that has sticky hairs to trap pollen is the ___.
a)
stamen
b)
stigma
c)
ovary
d)
style
15.
This occurs after a tube grows down from the pollen grain through the style to the ovary.
a)
pollination
b)
germination
c)
fertilization
d)
seed dispersal
16.
Pollination is the process by which pollen
a)
causes people to sneeze
b)
is formed inside a plant
c)
moves from stamen to stigma
d)
moves from stigma to stamen
17.

What part of the flower is B ?

a)

pistil

b)

petal

c)

ovary

d)

pollen

18.

The petals job is not only to protect the reproductive parts of the plant, but also to

a)

keep wind away from the stamen

b)

attract pollinators with their colors

c)

absorb sunlight

d)

fall off and become food for bugs

19.

Seed structure that grows become roots

a)

radicle

b)

plumule

c)

cotyledon

d)

endosperm

20.
Small leaf-like structures forming an outer circle at the base of a flower.
a)
petals
b)
sepal
c)
stigma
d)
pistil
21.

Name the part of the plant that anchors it to the ground

a)

Leaf

b)

Flower

c)

Stem

d)

Root

22.

Name the part of the plant which supports the leaves, buds and flowers

a)

Leaf

b)

Flower

c)

Stem

d)

Root

23.

Requires only one parent

a)

asexual reproduction

b)

sexual reproduction

24.

When the offspring are identical to the parent, this is ________________ reproduction?

a)

Heredity

b)

Sexual

c)

Asexual

d)

Chromosome

25.

When the offspring are identical to the parent, this is ________________ reproduction?

a)

Heredity

b)

Sexual

c)

Asexual

d)

Chromosome

26.

Is the Image showing Asexual or Sexual Reproduction?

a)

Sexual Reproduction

b)

Asexual Reproduction

27.

List the 8 planets in our solar system starting with the planet closest to the sun. List the planets with a comma between each planet.

(a)  

28.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
29.
Where does most of the energy go for this transformation.
a)
heat
b)
electrical
c)
light
d)
joules
30.
What type of device might this Sankey be about?
a)
A very efficient LED light bulb
b)
A very inefficient incandescent light bulb
c)
A coal power plant
d)
A wind turbine
31.
Which fraction best describes, of the part of the gasoline that is put into a car, that actually makes the car move. 
a)
4/10
b)
1/4
c)
2/4
d)
3/5
32.

Which bulb is the most efficient?

a)

Filament bulb

b)

LED light

c)

CFL lamp

33.

The energy efficiency shown in this diagram is:

a)

About 10%.

b)

About 30%.

c)

About 60%.

d)

Impossible to tell.

34.

An electric motor with an input energy of 1000 J transferred 300 J of this energy into kinetic energy. Calculate the percentage efficiency of the motor.

a)

30%

b)

50%

c)

70%

d)

333%

35.

Q. 

In which of the following units is domestic electrical consumption measured by electric companies ?

a)

kilowatt

b)

Joules

c)

Kilojoules

d)

Kilowatt-hour

36.

Calculate the power generated when a kettle convert 60,000 J of electrical energy into heat in 30 seconds. Power is measured in watts. Do not give any units in your answer.

(a)  

37.

What causes your skin to feel warm when it is in the sun on a summer day?

a)

Particles in the atmosphere reflect energy from the Sun downward

b)

The Sun radiates energy that passes through space & the atmosphere to your skin.

c)

Hot particles from the Sun still carry some heat when they reach your skin.

d)

The solar wind carries heated air from the Sun’s atmosphere to Earth’s surface.

38.

People sitting around a campfire are able to feel the heat from the fire.

How are the people able to feel the heat form the fire without touching the fire?

a)

A. The heat from the fire travels through the ground & heats the ground around the people.

b)

B. The heat from the fire is conducted through air molecules to the people.

c)

C. The heat from the fire rises in the air and then settles around the people.

d)

D. The heat from the fire radiates from the fire to the people.

39.

People sitting around a campfire are able to feel the heat from the fire.

How are the people able to feel the heat form the fire without touching the fire?

a)

A. The heat from the fire travels through the ground & heats the ground around the people.

b)

B. The heat from the fire is conducted through air molecules to the people.

c)

C. The heat from the fire rises in the air and then settles around the people.

d)

D. The heat from the fire radiates from the fire to the people.

40.

When heat energy moves in a solid it is called....

a)

Conduction

b)

Convection

c)

Radiation

41.

When heat energy moves in a liquids or gases it is called...

a)

Conduction

b)

Convection

c)

Radiation

42.

A radiator heating a cold room is an example of...

a)

Conduction

b)

Convection

c)

Radiation

43.

When heat energy can travel in space by infrared or thermal radiation it is called...

a)

Conduction

b)

Convection

c)

Radiation

44.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
45.

What type of thermal energy transfer is number 1 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

46.

What type of thermal energy transfer is number 2 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

47.

What type of thermal energy transfer is number 3 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

48.
a)

Conduction

b)

Convection

c)

Radiation

49.

Walking on the hot sand on a beach

a)

Conduction

b)

Convection

c)

Radiation

50.

What kind of heat transfer is occurring when the sun warms the sand?

a)

Conduction

b)

Convection

c)

Radiation

d)

Density

51.

Which of the following is an example of convection?

a)

A hair dryer is drying up your hair.

b)

Boiling spaghetti noodles in water

c)

When a car engine turns hot after being turned on.

d)

When the AC or heater changes the temperature

52.

The baby chickens kept warm from a heat lamps demonstrates this type of heat transfer. 

a)

conduction

b)

radiation

c)

convection

d)

density

53.

What is the speed of sound?

a)

3400m/s

b)

340m/s

c)

300000000m/s

d)

1500m/s

54.

Sound is caused by ....

a)

instruments

b)

vibrations

c)

force

d)

volume

55.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
56.
If you are wearing a yellow shirt, what is true of the light that strikes it?
a)
Yellow is absorbed; everything else is reflected
b)
Yellow is reflected; everything else is absorbed
c)
All colors are reflected
d)
All colors are absorbed
57.
If you are wearing a black sweatshirt, what happens to most of the light that strikes the sweatshirt 
a)
It is absorbed
b)
It is reflected
c)
It is transmitted
58.
Refraction is
a)
light bending 
b)
light bouncing
59.

If you want to change the pitch of a sound, you have to change the ______

a)

frequency

b)

amplitude

c)

height

d)

volume

60.

What term describes the responses made by plants to environmental stimuli?

(a)  

61.

What term describes plant growth in response to gravity?

(a)  

62.

Which of the following is a response to light?

a)

Hydrotropism

b)

Gravitropism

c)

Phototropism

d)

Germination

63.

what type of tropism is occurring here?

a)

phototropism

b)

thigmotropism

c)

geotropism

d)

tropictropism

64.
The root of a plant growing down. 
a)

Positive Geotropism

b)

Negative geotropism 

c)

Thigmotropism

d)

Hydrotropism

65.

What does the Xylem transport?

a)

Water and Minerals

b)

Glucose

c)

Blood

d)

Chlorophyll

66.

What does the Phloem transport?

a)

Water and Minerals

b)

Glucose

c)

Blood

d)

Chlorophyll

67.

What is water used for in the leaves of the plant?

a)

Drinking

b)

Respiration

c)

Photosynthesis

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