Plants and Ecosystems
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Parts of a Plant and Photosynthesis
SubtopicParts of a Plant and Photosynthesis under Plants and Ecosystems for Grade 3 IB.
Preview questions (no answers)
- 1.
When you eat a piece of celery, which part of the plant are you mostly eating?
A.The root
B.The flower
C.The stem
D.The seed
- 2.
What do plants provide for animals and humans in an ecosystem?
A.Only shade
B.Food and oxygen
C.Rocks and soil
D.Water and fire
- 3.
What happens to the leaves of many trees in the autumn season?
A.They turn blue
B.They stop doing photosynthesis and fall off
C.They grow much larger
D.They turn into flowers
Download the worksheet for Plants and Ecosystems - Parts of a Plant and Photosynthesis to practice offline. It includes additional chapter-level practice questions.
Life Cycles of Living Things
SubtopicLife Cycles of Living Things under Plants and Ecosystems for Grade 3 IB.
Preview questions (no answers)
- 1.
Some seeds are covered in tiny hooks or burrs. How does this help the plant complete its life cycle?
A.The hooks stick to animal fur so the seeds can travel to new places
B.The hooks help the seed swim in the ocean
C.The hooks protect the seed from being eaten
D.The hooks help the seed absorb more sunlight
- 2.
Which of these is a stage in the life cycle of a ladybug where it stays very still inside a hard covering while its body changes?
A.Egg
B.Pupa
C.Larva
D.Adult
- 3.
In the life cycle of some insects, what do we call the young stage that often looks like a smaller version of the adult but without wings?
A.Seed
B.Pupa
C.Caterpillar
D.Nymph
Download the worksheet for Plants and Ecosystems - Life Cycles of Living Things to practice offline. It includes additional chapter-level practice questions.
Animal Adaptations
SubtopicAnimal Adaptations under Plants and Ecosystems for Grade 3 IB.
Preview questions (no answers)
- 1.
Sharks have strong fins on their bodies. Based on the diagram, how do these fins help the shark survive in its ocean habitat?
A.They help the shark breathe oxygen from the water.
B.They help the shark stay warm in cold water.
C.They help the shark balance and move through the water.
D.They help the shark hide from other fish in the sand.
- 2.
What part of a seed provides food for the tiny baby plant inside until it can grow leaves?
A.The seed coat
B.The stored food area
C.The roots
D.The flower
- 3.
What is the role of a 'consumer' in an ecosystem?
A.To make its own food using the sun
B.To eat plants or other animals for energy
C.To break down rocks into soil
D.To provide water for the plants
Download the worksheet for Plants and Ecosystems - Animal Adaptations to practice offline. It includes additional chapter-level practice questions.
Habitats and Food Chains
SubtopicHabitats and Food Chains under Plants and Ecosystems for Grade 3 IB.
Preview questions (no answers)
- 1.
Besides taking in water, what is another job of a plant's roots?
A.Making seeds
B.Holding the plant firmly in the ground
C.Catching sunlight
D.Producing flowers
- 2.
What do we call it when many food chains in a habitat are connected together?
A.A food link
B.A food web
C.A plant cycle
D.A habitat group
- 3.
Why might some animals sleep all winter in their habitat (hibernate)?
A.Because they like the dark
B.To save energy because food is hard to find
C.To grow more fur
D.Because they are bored
Download the worksheet for Plants and Ecosystems - Habitats and Food Chains to practice offline. It includes additional chapter-level practice questions.