Planets
How many planets are there in our galaxy?
8
True or False: Earth is the only planet in our solar system with life.
True or False: Earth is the center of our galaxy.
False. The Sun is the center.
Belka and Strelka
Name the four inner planets.
Mercury, Venus, Earth, Mars
How long does it take for the Earth to complete one rotation?
24 hours
What do planets in our galaxy orbit?
The Sun
Solar eclipse is...
A solar eclipse happens when the Moon passes between Earth and the Sun, blocking the Sun’s light.
Name the four outer planets.
Jupiter, Saturn, Uranus, Neptune
How long does it take for the Earth to complete one revolution around the Sun?
365 days
What is the name of our galaxy?
Milky Way Galaxy
Why is Earth the only planet in the solar system known to support life?
because it has water, an atmosphere with oxygen, and a suitable climate range
True or False: Gas planets are smaller and warmer than rock planets
False. Gas planets are bigger and colder than rock planets.
What is the Earth's natural satellite?
The moon
Who was the first cosmonaut in the world? When did it happen?
Yuri Gagarin, 12 April 1961
What is the difference between a comet and an asteroid?
Comets are made of ice and rock and have long, glowing tails when they approach the Sun, due to the ice melting. Asteroids are made mostly of rock and metal, and they don’t have tails.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
The asteroid belt is between Mars and Jupiter.
How old is Earth?
4.543 billion years old
What is the Big Bang Theory?
A theory that an explosion caused all the matter in the Universe to form celestial bodies
What is SpaceX? Who is the 'head' of it?
American Space company famous for its space developments, Elon Mask