Alert: You are not allowed to copy content or view source
Check Exam Dates here | See Marking Scheme here | Frequently Asked Questions (FAQs) | Buy Practice Papers for CREST Olympiads here | Last Date for CREST Reasoning Olympiads (CRO) Registration is 20th June 2019 | CREST Reasoning Olympiads (CRO) is scheduled for June/July. Apply now

Human body

Example of Human body in daily life

Learn more about Human Body of Class 3.

How does the heart beat? Before each beat, your heart fills with blood. Then its muscle contracts to squirt the blood along. When the heart contracts, it squeezes ? try squeezing your hand into a fist. That?s sort of like what your heart does so it can sq

 

  EXPLORE  

70%