Vocabulary
A scientist who studies stars, planets, and other objects in the universe.
Astronomer
The spinning motion of Earth on its axis that causes day and night every 24 hours.
Rotation
The only star in our solar system and the closest star to Earth.
Sun
In a classroom solar system model, the globe represents this object.
Earth
True or False: Some visible stars in the night sky are closer to Earth than the Sun.
False
A tool, picture, or object scientists make to answer questions and explain phenomena in the real world.
Model
The movement of Earth traveling in a path around the Sun once every 365 days.
Revolve
The main reason the Sun appears much larger and brighter than any other star.
Because, it is much closer to Earth
In a classroom model, the light bulb represents this light source.
Sun
True or False: Some constellations are visible in the Northern Hemisphere but not in the Southern Hemisphere.
True
How bright the star appears from Earth's perspective
Apparent Brightness
The side of Earth pointing toward the Sun receives light and experiences this.
Daytime
As an object or star moves farther away from an observer, its apparent brightness does this.
Decreases or gets dimmer
The side of the globe in shadow away from the light bulb represents this time.
Nighttime
Huge objects in space that give off heat and light
Stars
The sun, planets that orbit the sun, and other objects that orbit the sun.
Solar System
The night sky looks different across seasons because Earth does this around the Sun.
Revolves/ Orbits
We cannot see stars during the day because of this.
The brightness of the sun
In the street light data table, Street Light X / The Sun is 1 km away and has this level of brightness
Very High/Bright
The motion that causes the Sun, Moon, and stars to appear to move across the sky each day.
Earth Rotation
To make a picture in your mind using information gathered from different sources.
Visualize
Not everyone on Earth experiences night at the same time because Earth is shaped like this moving object.
Rotating Sphere
Even though Alpha Centauri A is physically larger than the Sun, it appears less bright to us because of this
extremely far away
In the street light table, Street Light Z / Polaris has a very low apparent brightness because it is at this distance.
Farther Away
The third planet from the Sun, where we live.
Earth