A curve that is wider in the middle and tapered at the end.
The moon looks like it is in a crescent shape.
An expert who studies the sun, moon, stars, and planets.
The little girl had a dream of becoming an astronomer when she grew up.
Stages of growth.
The moon goes many phases throughout the year.
The robot's wheel rotates 5 times before stopping
A number of related things coming one after another
"Percy Jackson and The Olympians" is a good series of books.
A slender, thin piece.
If I looked under the curtain I could see a sliver of light.
I had to have a specific pencil to take the test.
A tool that makes distant objects seem closer
I looked through the telescope and I could see details of the moon.