CBC Grade 6 Science – Human Heart Quiz

Did you know that your heart is a muscular organ that works 24/7 and is about the size of your fist. It doesn’t sleep! It is in the middle of your chest, slightly to the left and acts like a pump.

Here Are Some Fun Facts About The Heart

  • Your heart beats about 100,000 times a day!
  • It’s about the size of your fist.
  • Your heart pumps about 5 litres of blood every minute.
  • The heart has its own electrical system and this allows it to beat even when taken out of the body for a short time!
  • The left side of your heart is stronger than the right. This is because the left ventricle pumps blood to the whole body, so its muscles are thicker.
  • Your heart rate changes based on your emotions. You’ve probably noticed that when you’re excited, nervous or scared, your heart beats faster.
  • A baby’s heart beats faster than an adult’s. A newborn’s heart beats about 120–160 times per minute, while an adult’s beats around 60–100 times per minute.

Your heart is a hardworking organ that keeps your body running. Do you know what that reminds me of? A car engine!

the human heart

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