Human Body Systems
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
The Skeletal System
SubtopicThe Skeletal System under Human Body Systems for Grade 3 IB.
Preview questions (no answers)
- 1.
Which of these is NOT a function of the skeletal system?
A.Giving the body shape
B.Protecting organs
C.Helping the body move
D.Thinking of new ideas
- 2.
What would the human body look like if we had no skeleton?
A.A tall tower
B.A floppy pile on the floor
C.A hard statue
D.A square box
- 3.
Which set of bones protects your lungs while you breathe?
A.The skull
B.The rib cage
C.The pelvis
D.The leg bones
Download the worksheet for Human Body Systems - The Skeletal System to practice offline. It includes additional chapter-level practice questions.
The Muscular System
SubtopicThe Muscular System under Human Body Systems for Grade 3 IB.
Preview questions (no answers)
- 1.
When you practice a move like throwing a ball over and over, your muscles 'remember' how to do it. What is this called?
A.Muscle memory
B.Muscle forgetting
C.Bone memory
D.Skin memory
- 2.
Where do your muscles get the energy they need to move and work?
A.From the air only
B.From the food you eat
C.From your shoes
D.From the TV
- 3.
Which muscles are used to open and close your eyes quickly when something flies toward your face?
A.Bicep muscles
B.Eyelid muscles
C.Toe muscles
D.Stomach muscles
Download the worksheet for Human Body Systems - The Muscular System to practice offline. It includes additional chapter-level practice questions.
The Nervous System
SubtopicThe Nervous System under Human Body Systems for Grade 3 IB.
Preview questions (no answers)
- 1.
If you want to move your finger to point at a bird, where does the instruction start?
A.In your fingernail
B.In your brain
C.In your elbow
D.In your wrist
- 2.
Which of these is NOT one of the three main components of the human nervous system?
A.The Brain
B.The Spinal Cord
C.The Stomach
D.The Nerves
- 3.
Which part of the body acts as the 'receiver' for sounds before sending them to the brain?
A.The Nose
B.The Ears
C.The Tongue
D.The Eyes
Download the worksheet for Human Body Systems - The Nervous System to practice offline. It includes additional chapter-level practice questions.
Nutrition and Healthy Growth
SubtopicNutrition and Healthy Growth under Human Body Systems for Grade 3 IB.
Preview questions (no answers)
- 1.
Which organ in your body is responsible for sending signals that tell you when you are hungry?
A.Your feet
B.Your brain
C.Your elbows
D.Your hair
- 2.
Which of these is a vegetable that grows underground?
A.Tomato
B.Potato
C.Apple
D.Banana
- 3.
Why is eating a healthy breakfast helpful for students?
A.It makes you go to sleep
B.It provides the energy needed to start the school day
C.It makes your backpack lighter
D.It helps you see in the dark
Download the worksheet for Human Body Systems - Nutrition and Healthy Growth to practice offline. It includes additional chapter-level practice questions.