Living Things
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Parts of a plant and their functions
SubtopicParts of a plant and their functions under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
Where are the minerals and nutrients for the plant usually found?
A.In the air
B.In the sunlight
C.In the soil
D.Inside the leaves
- 2.
Why do plants need to grow upwards?
A.To get closer to the clouds
B.To reach the sunlight
C.To avoid the grass
D.To find more soil
- 3.
Which part of a strawberry plant are the little yellow dots on the outside of the berry?
A.Roots
B.Leaves
C.Seeds
D.Stems
- 4.
What do seeds need to germinate (start growing)?
A.Water, warmth, and air
B.Ice, dark, and soil
C.Sand, wind, and salt
D.Soda, heat, and rocks
- 5.
Which of the following describes the life cycle of a plant in the correct order?
A.Seed -> Adult plant -> Seedling -> Flower
B.Seed -> Seedling -> Adult plant -> Flower -> Seed
C.Flower -> Seed -> Seedling -> Adult plant
D.Adult plant -> Seedling -> Seed -> Flower
- 6.
Why are leaves generally wide and thin?
A.To help them float in water
B.To provide a large surface area to collect sunlight
C.To make them easier for insects to walk on
D.To help the plant stay warm
- 7.
Some seeds are found inside berries. How are these seeds usually spread?
A.By the wind blowing them
B.By animals eating the fruit and dropping the seeds later
C.By the berries exploding
D.By the berries floating down a river
- 8.
Which of the following describes a function shared by both the stem and the roots?
A.Both parts are responsible for making food using sunlight.
B.Both parts help to transport water and nutrients through the plant.
C.Both parts are found above the ground in every plant.
D.Both parts produce flowers during the springtime.
- 9.
Why do some seeds, like those in an apple, have a tough or bitter-tasting coating?
A.To prevent the seeds from being digested when an animal eats the fruit.
B.To stop the seeds from ever growing into a new tree.
C.To help the seed absorb sugar from the apple.
D.To make the apple taste better for humans.
- 10.
If a plant is kept in a room with only one small lamp, and the lamp is moved every day, what will the plant's stem likely do?
A.It will grow straight up because it is confused.
B.It will stop growing altogether.
C.It will constantly change its direction of growth to follow the lamp.
D.It will grow toward the floor to find a different light source.
Download the worksheet for Living Things - Parts of a plant and their functions to practice offline. It includes additional chapter-level practice questions.
Conditions for plant growth
SubtopicConditions for plant growth under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
Why do plants grow taller and taller?
A.To get closer to the clouds
B.To reach more sunlight
C.To escape from the soil
D.To see over the fence
- 2.
What happens to a plant if the weather stays very cold for a long time?
A.It grows faster to stay warm
B.Its growth slows down or stops
C.It turns into a different kind of plant
D.It grows more flowers
- 3.
Besides taking in water, what is another important job of the roots?
A.To make seeds
B.To hold the plant firmly in the ground
C.To attract bees
D.To shade the stem
- 4.
Can some plants grow in water without any soil at all?
A.No, never
B.Yes, if they have the right nutrients added to the water
C.Only if they are plastic plants
D.Yes, but they will turn into fish
- 5.
A gardener notices that a plant in a very shady spot is not growing well. What should they do?
A.Water it five times a day
B.Move it to a sunnier location
C.Put it in a smaller pot
D.Paint the leaves green
- 6.
If a student wants to see how nutrients affect growth, they should use two plants and give:
A.One plant light and the other darkness
B.One plant fertilizer and the other just plain water
C.One plant a lot of water and the other a little water
D.One plant a big pot and the other a small pot
- 7.
Which of these statements about plant growth is true?
A.Plants only grow at night
B.Plants need the right conditions to grow healthy
C.Plants grow better in frozen soil
D.Plants do not need any air to grow
- 8.
Which of the following describes the 'perfect' conditions for most common garden seeds to germinate?
A.Cold, dry, and dark.
B.Warm, moist, and containing air.
C.Boiling hot, soaked in water, and no air.
D.Freezing, wet, and bright light.
- 9.
A student finds that her plant grows in a week when she talks to it, and another plant grows when she doesn't. What can she conclude?
A.Plants like it when people talk to them.
B.Talking to plants makes them grow slower.
C.Talking to the plant did not make a difference in this experiment.
D.She should have shouted at the plant instead.
- 10.
If a seed is kept in a vacuum (a place with no air at all), but has perfect warmth and moisture, what will happen?
A.It will grow faster because there is no air resistance.
B.It will germinate but then immediately explode.
C.It will not germinate because it needs oxygen from the air.
D.It will grow normally because seeds don't need air.
Download the worksheet for Living Things - Conditions for plant growth to practice offline. It includes additional chapter-level practice questions.
The human skeleton and muscles
SubtopicThe human skeleton and muscles under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
What part of the skeleton do we use to chew our food?
A.The ribs
B.The jaw bone
C.The spine
D.The shoulder
- 2.
Which bone is commonly called the 'funny bone' (even though it's actually a nerve near a bone)?
A.Femur
B.Humerus
C.Tibia
D.Skull
- 3.
How do bones and muscles work together?
A.Bones pull the muscles
B.Muscles pull the bones
C.They don't work together
D.They turn into each other
- 4.
Which of these is a name for a muscle in your upper arm?
A.Bicep
B.Femur
C.Skull
D.Spine
- 5.
If a muscle on the front of your arm pulls to bend your elbow, what must the muscle on the back of your arm do?
A.Pull at the same time
B.Stay the same
C.Relax
D.Turn off
- 6.
Which of these is NOT a function of the human skeleton?
A.Protecting organs
B.Supporting the body
C.Digesting food
D.Allowing movement
- 7.
What kind of image do doctors use to see if a bone is broken?
A.A photograph
B.An X-ray
C.A drawing
D.A mirror
- 8.
A student is using a robotic model to show how muscles move a joint. The robot has two motors that act like an antagonistic pair of muscles to move the lower arm. If both motors pull on the bone at the same time with the same amount of force, what will most likely happen to the robot's arm?
A.It will swing back and forth very quickly
B.It will stay still and become very stiff
C.It will bend until the motors break
D.It will only move if the joint is changed to a ball-and-socket
- 9.
If you tap your knee just below the kneecap, your leg kicks forward. This is a reflex. Which system is NOT directly involved in this immediate reaction?
A.The digestive system
B.The nervous system
C.The muscular system
D.The skeletal system
- 10.
Which of these activities would be impossible if humans did not have a pelvis?
A.Walking, because the leg bones would not be attached to the spine
B.Thinking, because the brain would not have support
C.Breathing, because the lungs would collapse
D.Hearing, because the ear bones are part of the pelvis
Download the worksheet for Living Things - The human skeleton and muscles to practice offline. It includes additional chapter-level practice questions.
Animal nutrition and diets
SubtopicAnimal nutrition and diets under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
Which animal uses its beak to sip nectar from inside a flower?
A.A hummingbird
B.An eagle
C.An owl
D.A penguin
- 2.
What would happen to a lion if there were no more prey animals to eat?
A.It would start eating grass
B.It would become a producer
C.It would go hungry and struggle to survive
D.It would start making its own food
- 3.
What do we call an animal that hunts for its food?
A.A predator
B.A producer
C.A prey
D.A plant
- 4.
Which of these animals is the predator of a worm?
A.A robin (bird)
B.A blade of grass
C.A leaf
D.A cow
- 5.
Based on the food web diagram, which animal is a predator that eats both a herbivore (the squirrel) and a carnivore (the spider)?
A.Beetle
B.Spider
C.Fox
D.Squirrel
- 6.
Which of these animals is a natural predator of a grasshopper?
A.A butterfly
B.A frog
C.A horse
D.A deer
- 7.
Why do food chains usually have only three or four steps?
A.Because animals get too tired to eat more
B.Because energy is lost at each step in the chain
C.Because there are not enough plants in the world
D.Because most animals are too small to be eaten
- 8.
Why do some animals store extra food as 'Fat' rather than 'Carbohydrates'?
A.Fat is lighter and easier to carry around.
B.Fat contains more than twice the energy per gram compared to carbohydrates.
C.Fat can be turned into oxygen when the animal cannot breathe.
D.Animals cannot store carbohydrates in their bodies.
- 9.
In the following diagram, what would happen if the 'Spider' population was removed?
A.The Aphid population would likely increase.
B.The Plant population would grow much faster.
C.The Ladybug population would have more food.
D.The Bird population would only eat the Plant.
- 10.
Which of these vitamins is produced in the skin of many animals when they are exposed to sunlight, helping them absorb calcium?
A.Vitamin A
B.Vitamin B
C.Vitamin C
D.Vitamin D
Download the worksheet for Living Things - Animal nutrition and diets to practice offline. It includes additional chapter-level practice questions.
Classification of living and non-living things
SubtopicClassification of living and non-living things under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
Which of these living things has the best sense of touch to feel heat?
A.A dog
B.A metal spoon
C.A ceramic plate
D.A plastic cup
- 2.
All living things need to take in gases from the air. Which process is this part of?
A.Movement
B.Breathing/Respiration
C.Reproduction
D.Excretion
- 3.
Which of these is a non-living thing that can move when there is a breeze?
A.The wind
B.A snail
C.A human baby
D.A green leaf on a tree
- 4.
Which of these is a type of living plant?
A.A cactus
B.A sea crab
C.A rain cloud
D.A piece of coral
- 5.
Which of these is NOT one of the seven life processes?
A.Growth
B.Communication
C.Nutrition
D.Excretion
- 6.
A sponge in the kitchen is made of plastic. A sponge in the ocean is an animal. Which one is living?
A.The kitchen sponge
B.The ocean sponge
C.Both are living
D.Neither is living
- 7.
Which of these processes helps a species continue to exist on Earth?
A.Excretion
B.Reproduction
C.Respiration
D.Movement
- 8.
A student is using a scientific classification key to sort items found at the beach. She finds a dried-out starfish that is hard, brittle, and no longer moves, breathes, or grows. According to the logic of the key provided, which group is the correct classification for the starfish?
A.Group 1, because the starfish is now as hard as a non-living rock.
B.Group 2, because the starfish was once alive but no longer carries out life processes.
C.Group 3, because a starfish is an animal and all animals are always classified as living.
D.Group 1, because it was found on the sand next to other non-living things.
- 9.
If a mysterious new 'thing' is discovered, what is the minimum number of life processes it must show to be definitely called 'living'?
A.Only 1 (Movement)
B.Exactly 3 (Growth, Nutrition, Movement)
C.All 7 (MRS GREN)
D.At least 5
- 10.
What is the primary difference between how animals and plants get their 'Nutrition'?
A.Animals make their own food; plants must eat animals.
B.Animals eat other living things; plants make their own food using sunlight.
C.Animals drink water; plants do not need water.
D.There is no difference; they both eat soil.
Download the worksheet for Living Things - Classification of living and non-living things to practice offline. It includes additional chapter-level practice questions.
Habitats and local environments
SubtopicHabitats and local environments under Living Things for Grade 3 IGCSE.
Preview questions (no answers)
- 1.
A seahorse lives in a coral reef. Where is this habitat found?
A.Under the ground
B.On top of a hill
C.In the clouds
D.Under the sea
- 2.
A hedgehog might sleep in a pile of dry leaves. Why is this a good place for it?
A.It is very loud
B.It is very bright
C.It is warm and hidden
D.It is deep underwater
- 3.
A crocodile lives in a swamp. Which of these describes a swamp habitat?
A.A very dry sandy place
B.A wet and muddy area
C.A mountain with no trees
D.A field of dry wheat
- 4.
Reindeer have wide hooves that help them walk on snow. Which habitat would you find them in?
A.A cold tundra
B.A tropical beach
C.A hot savanna
D.A deep ocean
- 5.
A camel has very long eyelashes. How do these help it survive in its sandy habitat?
A.They help the camel see better in the dark
B.They keep blowing sand out of the camel's eyes
C.They help the camel stay cool by providing shade
D.They attract insects for the camel to eat
- 6.
How does a kangaroo's pouch help it take care of its young in the wild?
A.It helps the young kangaroo learn how to fly
B.It provides a safe place for the baby to grow and stay protected
C.It stores extra water for the baby to drink
D.It helps the mother kangaroo swim faster
- 7.
If a local community plants a new forest of trees, how will this most likely change the environment?
A.There will be less air for the local animals to breathe
B.Many animals will lose their homes and leave
C.There will be more shelter and food for many types of wildlife
D.The ground will become much drier and turn into a desert
- 8.
In a woodland habitat, what is the most likely reason a squirrel 'caches' (hides/buries) nuts in the ground during the autumn?
A.To help new trees grow in the spring.
B.To hide them from other squirrels who might want to play with them.
C.To ensure it has a supply of food when it is scarce during the winter.
D.To keep the nuts cool so they do not melt in the sun.
- 9.
How do the 'gills' of a fish serve as an adaptation for its specific habitat?
A.They allow the fish to taste the water to find food.
B.They help the fish stay upright while swimming in strong currents.
C.They extract dissolved oxygen from the water so the fish can breathe.
D.They filter out the salt so the fish can drink the water.
- 10.
What is the main reason that most 'primary consumers' (herbivores) in a habitat have eyes on the sides of their heads?
A.To help them see the grass they are eating more clearly.
B.To give them a wide field of view to spot predators approaching from the sides or back.
C.To allow them to look at two different pieces of food at the same time.
D.To make it easier for them to swim in a straight line.
Download the worksheet for Living Things - Habitats and local environments to practice offline. It includes additional chapter-level practice questions.