WorksheetsRevision science Yr 4 term 2
Total questions: 70
Worksheet time: 1hrs 16mins
What is the main organ used for breathing in humans?
Heart
Lungs
Stomach
Kidneys
Which gas do humans take in when they breathe?
Carbon dioxide
Oxygen
Nitrogen
Helium
What is the process of removing waste products from the body called?
Digestion
Excretion
Respiration
Circulation
Which organ is mainly responsible for filtering waste from the blood?
Lungs
Kidneys
Heart
Liver
What is defecation?
Breathing in air
Removing solid waste from the body
Sweating
Drinking water
Which part of the body stores solid waste before it is removed?
Stomach
Rectum
Lungs
Bladder
What is a stimulus?
A type of food
Something that causes a response
A kind of exercise
A type of waste
If you touch something hot, what is your immediate response?
Laugh
Pull your hand away
Jump up and down
Close your eyes
Which of the following is an example of excretion?
Eating food
Sweating
Sleeping
Reading
What happens if you hold your breath for too long?
You get more energy
You may feel dizzy or faint
You become stronger
You feel hungry
Which habit can disrupt the human response to stimuli?
Getting enough sleep
Taking drugs
Eating healthy food
Exercising regularly
What is the main function of the lungs?
Pump blood
Exchange gases
Store food
Produce urine
Which organ removes liquid waste from the body?
Lungs
Kidneys
Heart
Intestines
What is the waste product removed by the lungs?
Urine
Carbon dioxide
Sweat
Feces
Which of the following is NOT a healthy habit for the respiratory system?
Smoking
Exercising
Breathing fresh air
Drinking water
What should you do if you feel the urge to defecate?
Ignore it
Go to the toilet
Eat more food
Drink water
Which of the following is a response to a loud noise?
Smiling
Covering your ears
Eating
Sleeping
What can happen if you do not excrete waste properly?
You become healthier
Waste builds up and can make you sick
You grow taller
You sleep better
Which of the following is a poor habit that can affect your body’s response to stimuli?
Getting enough rest
Using harmful drugs
Eating fruits
Playing sports
What is the main waste product removed during defecation?
Sweat
Feces
Urine
Carbon dioxide
What is the breathing organ of animal in the picture?
Gills
Lungs
Moist skin
Spiracle
newt has two organ breathing which are ............... and ..............
lungs and gills
spiracle and moist skin
lungs and moist skin
lungs and spiracle
Some organisms exchange gases through the sides of their body through tiny holes called _______.
spiracles
diffusion
lungs
oxygen
What is the major difference between vertebrates and invertebrates?
Vertebrates have a backbone and invertebrates do not.
Invertebrates live in water and vertebrates do not.
Invertebrates have a backbone and vertebrates do not.
Invertebrates are smaller than vertebrates.
A frog is vertebrates. It has moist skin and eat insect. It lives on land and in water. It breathe using lungs and moist skin. It also can be classify as ___
Reptiles
Amphibians
Mammals
Bird
What do reptiles and mammals have in common?
They both give birth to live young.
They both breathe using lungs.
They both are cold-blooded animals.
They both have fur.
Your teacher asks you to identify a mystery animal based on only a few traits. What is the animal?
amphibian
reptile
bird
mammal
Which one is correct
breathing structure: lungs, invertebrate, mammals
breathing structure: lungs, vertebrate, mammals
breathing structure: lungs, vertebrate, amphibians
breathing structure: lungs, invertebrate, amphibians
Which of the following animals is invertebrate?
What is the method of reproduction for birds?
Lay eggs
Give birth
Stimuli are ___________
changes in the condition of the surrounding environment.
process in which organisms grow larger.
a reaction to a change in surroundings
How do plants respond to gravity?
The stem and roots both grow downward.
The stem and roots both grow upward.
The stem grows downward and the roots grow upward.
The stem grows upward and the roots grow downward.
What is the stimuli related to the tree shown above?
Water
Light
Touch
Gravity
Which plant responds in the same way as the mimosa leaves?
Rose plant
Venus flytrap
Aloe vera
Pineapple plant
Diagram shows an observation made at the end of experiment. What conclusion can be made from the observation?
The shoot respond to food
The roots respond to gravitational pull
The leaves respond to touch
The shoot respond to water
Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the diagram, plants require water and carbon dioxide (from the air). What else is required for photosynthesis and what role does it play?
Light is required to provide energy for photosynthesis.
ATP is required as an energy source for photosynthesis.
Glucose is required as an energy source for photosynthesis
Oxygen is required to split water molecules in photosynthesis.
Based on your understanding on the property of light, is the puppet transparent, translucent or opaque?
Transparent
Translucent
Opaque
What is the differences between reflection of light and refraction of light?
Reflection of light means light reflected when it hits a smooth, shiny or flat surface. Whereas, refraction of light takes place when light moves through two different media.
Reflection of light means light takes place when light moves through two different media. Whereas, refraction of light is light reflected when it hits a smooth, shiny or flat surface.
The coloured rays of the rainbow are caused by the
Reflection
Refraction
When all light is able to pass through, the material is __________________________
transparent
translucent
opaque
Stan can see the moon at night because the moon
glows in the dark
reflects light from the sun
is very large
makes its own light
Aaron is in his classroom which is on the third floor. However, she can hear the teacher talking to the pupils one floor below. How can this situation occur?
The teacher is using magnifying glass to overcome her limitation
sound is absorbed by objects around the classroom
voices echoes and travels in all directions
which of the following is not an application of sound reflection?
sonar
Echo in fish
Radar
Which of the following steps can reduce sound pollution?
Installing a fence around the house
using sponge as sound absorbing material
placing loud speakers in open spaces
Sound___________ in all directions
is absorbed
travels
Extremely loud sound can be ____________________
beneficial
harmful
These instrument produced sound by blowing, EXCEPT
Anika is playing her flute. When the air inside the flute vibrates, it produces sound. What is this action called?
Plucking
Bowing
Blowing
Clapping
Sound need ............ to travel.
energy
strength
medium
Which of the instruments make sounds through the vibration of the bar?
Airport ground staffs use ____________ to prevent ear damage from excessive aircraft noise.
ear plugs
ear protectors
a head scarf
a helmet
The class next door is making a lot of noise. What can we do to keep the noise out?
Kelas di sebelah membuat bunyi bising. Apa yang boleh kita lakukan untuk mengelakkan kebisingan?
Build a thicker wall
Bina dinding yang tebal
Scold the children
Memarahi budak-budak tersebut
Hang curtains
Gantungkan langsir
During a school safety drill, Avery and Sophia notice different sounds around them. Some sounds help them understand instructions and alert them to emergencies. Which of the following are useful effects of sound in this scenario?
Allow us to communicate
Indicates emergency alert.
Can cause hearing problems
Cause disturbance and stress
Iris and her family just moved into a new house. As she speaks in the empty room, she hears her own voice again. Why?
Because of the echo.
Because of the ultrasonic sound
Because she speaks too loud
Because she is using the sonar technology.
Why Ilhan, Qaid and Atiqah can hear the sound of the bell ringing from an ice cream seller even though they are at different positions?
Because the sound of the bell is too loud.
Because they are too near to the ice cream seller.
Because they can smell the ice creams.
Because the sound travels in all directions.
Look at the picture given. Choose the most suitable manipulative skill.
Store apparatus
Handle specimens
Sketch specimens, apparatus and subtances
Clean apparatus
Manipulative skills in scientific investigations are psychomotor skills that enable students to ____
use and handle science apparatus and laboratory
use and handle science apparatus, substances and specimens in an approved manner
use and handle science apparatus only
It is a process skill where you plan and design an investigation, including a procedure, to test a hypothesis.
Ini adalah proses kemahiran di mana anda merancang dan mereka bentuk penyiasatan, termasuk prosedur, untuk menguji hipotesis.
Formulating hypothesis
Merumuskan hipotesis
Communicating
Berkomunikasi
Interpreting data
Mentafsir data
Experimenting
Bereksperimen
The diagram shows the condition of a tree. Which of the following is the reasonable inference for the tree ?
Rajah menunjukkan keadaan sepohon pokok. Manakah inferens yang munasabah bagi pokok itu?
The tree is responding to the touch
Pokok itu bergerak balas terhadap sentuhan
The tree did not get enough water
Pokok itu tidak mendapat cukup air
The tree become wilt
Pokok itu menjadi layu
The tree is growing
Pokok itu sedang membesar
When you group or organize categories, you are using the skill of ..... ?
Apabila anda membuat kumpulan atau mengatur kategori, anda sedang menggunakan kemahiran ..... ?
Observe
Memerhati
Predict
Meramal
Classify
Mengelas
What is this science process skill?
Making inference
Classifying
Measuring and using numbers
Defining operationally
Using this material is one of the way to ..............
observe
communicate
make inference
predict
Predict what will happen to Plant A after 7 days.
Plant A will die
Plant A will grow taller
Plant A will bear fruit
Plant A will grow bigger
5. Which skill is done when you describe what will happen based on gathered data or observation?
communicating
inferring
predicting
