Grade 3 · Science · On Level
Free Human Body & Health worksheet - version 10
Grade 3 human body & health practice with original questions, explanations, and difficulty-matched printable versions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Human Body & Health
Grade 3 · On-level practice · 8 questions · Version PG-V5U3F2-N3A3
1.Which cells carry oxygen?
2.What do muscles do?
3.Where does digestion begin?
4.What is the immune system's job?
5.Which system sends messages through nerves?
6.Why do people need sleep?
7.Why is a balanced diet useful?
8.What do kidneys remove from blood?
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 10
- Which cells carry oxygen?Red blood cells
- What do muscles do?They contract to move body parts
- Where does digestion begin?In the mouth
- What is the immune system's job?Defend against harmful pathogens
- Which system sends messages through nerves?The nervous system
- Why do people need sleep?To help the body and brain recover
- Why is a balanced diet useful?It supplies varied nutrients
- What do kidneys remove from blood?Wastes and extra water
Worked example
Connect a structure to its function and explain how body systems work together.
Common mistake
Naming an organ without explaining its system role.
Helpful hint
Trace what enters, changes, and leaves the system.