Grade 3 · Science · On Level
Free Human Body & Health worksheet - version 9
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-18M2ZN6-N3A3
1.Which cells carry oxygen?
2.Why is a balanced diet useful?
3.How do vaccines help?
4.What do kidneys remove from blood?
5.What is the immune system's job?
6.Which system sends messages through nerves?
7.Name one job of the skeleton.
8.What do muscles do?
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 9
- Which cells carry oxygen?Red blood cells
- Why is a balanced diet useful?It supplies varied nutrients
- How do vaccines help?They prepare immunity to recognize a pathogen
- What do kidneys remove from blood?Wastes and extra water
- What is the immune system's job?Defend against harmful pathogens
- Which system sends messages through nerves?The nervous system
- Name one job of the skeleton.Support and protect the body
- What do muscles do?They contract to move body parts
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.