Science Unit 1 Chapter 2

The ______ is the only star in our Solar System.

• Moon

• Sun

• Pluto

• Constellation

A _____ is something scientist make to answer questions about the real world.

• explanation

• chart

• data

• model

An _____is a description of how or why something happens.

• explanation

• visualize

• model

• data

A _____ is something we observe to be similar over and over.

• planet

• data

• explanation

• pattern

A _____ is a hug object in the sky that gives off heat and light.

• planet

• star

• constellation

• moon

A _____ is an arrangement of stars as seen from Earth.

• constellation

• planet

• explanation

• sphere

An ______ is a scientist who studies stars, planets, and other objects in the universe.

• chemist

• biologist

• anthropologist

• astronomer

A _____ is a period of time that is 24 hours long.

• Year

• month

• day

• quarter

What effects how big a star appears to be?

• A star's distance from Earth

• A star's name

• NASA likes the star.

• Scientist in space