Worksheetsscience grade 4 revision
Total questions: 50
Worksheet time: 25mins
The force that sends the rocket forward is called
thrust
drag
speed
gravity
The force that makes an aeroplane rise is called
drag
thrust
lift
gravity
Force that pulls the object towards earth
lift
friction
gravity
buoyancy
A push or a pull is
force
acceleration
motion
speed
Distance of the object in certain period of time is called
acceleration
force
speed
motion
The force that slows a vehicle as it moves through a liquid or a gas is called
thrust
drag
lift
force
When a object changes speed or direction it
rotates
speed increases
accelerates
stops
solution to a problem is
design process
technology
A scientist who designs new cars is a
doctor
engineer
designer
teacher
To invent a solution to a problem , we use
technology
engineer
design process
recycling method
SOLAR CELLS changes sunlight into
heat
electricity
Look at the picture. what does this tool measures?
precipitation
wind direction
wind pressure
air pressure
A liquid changes slowly into gas. The process is called
condensation
evapouration
freezing
sublimation
The blanket of air surrouding the earth is called
stratosphere
gas
atmosphere
trosphere
The pattern of seasonal weather in a region over many years is called
rainy season
weather
climate
temperature
A is a prediction of weather conditions
telecast
forecast
radio forecast
news casting
Which tool is used to measure air temperature?
In which layer of atmosphere do organisms live.
stratosphere
exosphere
mesosphere
troposhere
gas changes to liquid is
evapouration
condensation
precipitation
sublimation
When a solid ice changes to liquid water the process is called
condensation
evapouration
sublimation
liquification
look at the forecast and choose the correct statement which describes the image properly.
the pattern of season that happens year after year is called climate
the condition of the atmosphere that changes day to day is called weather.
air that just passed over a mountain is
warm
wet
dry
heavy
latitude is a measure of distance from
an air mass
an ocean current
a mountain
the equator
Where is altitude highest?
on a mountain top
at the bottom of mountain
at sea level
in the valley
Which tool is used to measure air pressure?
when does the sun rises highest in the sky in the northern hemisphere?
march
june
september
december
which process takes earth 24 hours to complete?
revolution
shadow
rotation
seasons
moon has its own light source of energy
true
false
The moon reflects light from the sun.
true
false
The movement or spin of the earth around the sun is called
rotation
revolution
spinning
orbit
whar causes many of the craters on the moon?
meteoroids striking on the moon
earthquakes on the moon
land slides on the moon
flooding on the moon
earth does not orbits around the sun.
true
false
moon is a
planet
natural satellite
dwarf planet
comet
gallileo used to observe the objects in the space.
binoculars
camera
telescope
microscope
During a lunar eclipse what color does the moon appear?
black
yellow
white
red
In order to have an eclipse the moon, sun and earth have to be?
below each other
above each other
in alignment
Which eclipse occurs when the moon comes directly between the earth and the sun?
Solar eclipse
lunar eclipse
During lunar eclipse
the sun is blocked by the moon
the moon the blocked by the sun
the sun is blocked by the earth
you are blocked
What type of eclipse is shown in the diagram?
solar eclipse
lunar eclipse
total eclipse
partial eclipse
which phase of the moon you observe in the diagram
new moon
waxing gibbons
full moon
waxing cresent
Name the largest planet
neptune
jupiter
earth
mars
The hottest planet is
mercury
venus
mars
saturn
Which is the only planet known to have life
mars
mercury
earth
uranus
Which is the smallest planet in our solar system
mercury
venus
mars
earth
Which planet has the brightest ring.
jupiter
uranus
saturn
pluto
name the gas giants
jupiter,saturn,neptune,uranus
mercury,earth,venus,mars
The planet which is most distant to the sun.
neptune
saturn
mercury
uranus
An object made up of ice,dust, gas and usually have a tail is called
meteor
asteroid
comet
planet
The belt between the jupiter and mars is called
kuiper
asteroid
comet
star
when the asteroid from the space enters the earth it is called
meteor
shooting star
comet
asteroid
