Grade 3 · Science · On Level
Free Human Body & Health worksheet - version 7
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-1962714-N3A3
1.Why is a balanced diet useful?
2.What is the immune system's job?
3.What do kidneys remove from blood?
4.Which system sends messages through nerves?
5.Which cells carry oxygen?
6.What do muscles do?
7.How do vaccines help?
8.Name one job of the skeleton.
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 7
- Why is a balanced diet useful?It supplies varied nutrients
- What is the immune system's job?Defend against harmful pathogens
- What do kidneys remove from blood?Wastes and extra water
- Which system sends messages through nerves?The nervous system
- Which cells carry oxygen?Red blood cells
- What do muscles do?They contract to move body parts
- How do vaccines help?They prepare immunity to recognize a pathogen
- Name one job of the skeleton.Support and protect the body
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.