Grade 3 · Science · Building Confidence
Free Human Body & Health worksheet - version 14
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 · Building confidence · 8 questions · Version PG-1KYRHY0-L51E
1.What is the immune system's job?
2.Which cells carry oxygen?
3.Which system sends messages through nerves?
4.Why do people need sleep?
5.What do kidneys remove from blood?
6.Name one job of the skeleton.
7.What do muscles do?
8.Why is a balanced diet useful?
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 14
- What is the immune system's job?Defend against harmful pathogens
- Which cells carry oxygen?Red blood cells
- Which system sends messages through nerves?The nervous system
- Why do people need sleep?To help the body and brain recover
- What do kidneys remove from blood?Wastes and extra water
- Name one job of the skeleton.Support and protect the body
- What do muscles do?They contract to move body parts
- Why is a balanced diet useful?It supplies varied nutrients
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.