What is a comet head?
A comet is like a dirty snowball in space. The head of the comet is the front part. It has two main pieces:
- Nucleus — the little hard ball made of ice, dust, and rocks. Think of it like a tiny icy rock.
- Coma — a big fluffy cloud that forms around the nucleus when the comet gets close to the Sun. It looks like a glowing, fuzzy head.
When the Sun warms the icy nucleus, some ice turns into gas. That gas makes the coma — the fuzzy head — and also helps make the comet's tail.
Easy way to remember
Imagine a snowball (nucleus) wrapped in cotton (coma). The snowball is the solid center. The cotton is the fuzzy glowing cloud around it.
Fun little activity (make a pretend comet head)
Materials: a small ball (a grape, a small stone, or a clay ball), some cotton or fluff, and a flashlight.
- Put the small ball in the middle. This is the nucleus — the icy center.
- Wrap some cotton around the ball. This is the coma — the fuzzy head.
- Turn off the lights and shine the flashlight on your comet. The light is like the Sun making the coma glow!
Quick facts
- The nucleus is like a dirty snowball.
- The coma can be very big and look like a glowing cloud.
- Comets get tails when the Sun warms them — but the head is the nucleus + coma.
Great job! Now you know what the head of a comet is. You can show a friend how to make a comet head with your craft.