Lists of comets

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/lists-of-comets

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary origin reservoirs?Kuiper Belt for short-period comets; Oort Cloud for long-period comets
2. What is a comet?A comet is a tiny icy traveler that zooms through space. It can visit the inner solar system once, or it can keep coming back every few years.
3. How do scientists know if a comet will come back?They look at the comet's orbit. A long, almost straight path means it might visit only once, while a looping orbit that brings it close to the Sun every few years means it will return.

Near-parabolic orbit: An open, highly eccentric trajectory characteristic of objects originating from the Oort Cloud, rarely returning to the inner solar system.
Elliptical orbit: A closed, oval-shaped trajectory, typically associated with objects from the Kuiper Belt, allowing for predictable returns to the Sun.
Oort Cloud: A theoretical, vast spherical shell of icy bodies surrounding the solar system, considered the source of long-period comets.
Kuiper Belt: A disk-shaped region beyond Neptune containing numerous icy bodies, serving as the primary source for short-period comets.