Show:
Universe
Solar System
Earth
Stars 1
Stars 2
100
What makes up the universe?
Space and all the matter and energy in it.
100
How many planets are in our Solar System?
8 Pluto is not a planet
100
Where is Earth?
3rd planet from the sun
100
Define a star
Large celestial body composed of gas and emits light
100
If you had 2 stars of the same temperature and size, why would one appear brighter than the other?
Closer to Earth
200
Is a light-year describing distance or time?
Distance
200
How many stars are in our solar system?
1
200
What is so special about Earth's water?
Liquid
200
Where do all the element in our bodies come from?
Stardust
200
Where is matter converted to energy in a star?
Core
300
Define a light-year
The distance light travels in one year
300
What do we call the planets Mercury, Venus, Earth, and Mars?
Terrestrial Planets
300
Why is liquid water so important?
Supports life
300
What do we call 2 stars that orbit each other?
Binary star system
300
What makes stars different colors?
The temperature
400
What is the name of our galaxy?
Milky Way
400
Name the Gas Giant Planets.
Jupiter, Saturn, Uranus, Neptune
400
What atmospheric layer does Earth have that helps keep out the sun's radiation?
Ozone
400
What 2 elements are stars mostly made up of?
Hydrogen and helium
400
How do astronomers measure a star's luminosity?
Absolute brightness scale
500
What is the name of the theory that scientist use to describe the beginning of the universe?
The Big Bang
500
Name the different bodies that make up our solar system
Sun, Planets, moons, asteroids, comets, dwarf planets
500
Water helps the plants, why is that so important to life on Earth?
Plants provide oxygen
500
How many hydrogen atoms must fuse together to form helium?
4
500
Order the colors of stars from HOTTEST to COOLEST
Blue, White, Yellow, Orange, Red