Earth and Beyond Flashcards
(30 cards)
What is a galaxy?
A large group of stars.
What is a planet?
A large round object in space that moves around a star.
What planet do we live on?
Earth
How many planets are in the solar system?
8 planets
What is a star?
An object in space with its own light.
What is the sun?
A large bright object in the sky that gives us light. It is our nearest star. It is at the center of the solar system.
What is the universe?
All the known and unknown worlds and galaxies in space.
What is the milky way?
A small galaxy in which our sun, the earth and our moon are part of.
What is the solar system?
A group of planets which earth is part of, moons, comets and asteroids spinning around our sun.
What are orbits?
Large circular paths that the planets travel in around the sun.
Which is the largest planet in our solar system?
Jupiter
Name the planets in order from the one closest to the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Which planet is farthest from the sun?
Neptune
How many hours does it take for the earth to spin on its own axis?
24 hours (1 day)
Does the sun move?
No
In which season is the sun highest at 12 noon?
In summer
What shape is the sun, the earth and the moon?
Spherical (like a ball)
How long does it take the earth to orbit around the sun?
365 days (1 year)
How fast does the Earth spin?
1000 km per hour
Before clocks were invented, how could one tell the time?
Using a sundial
What is an eclipse?
When the sun, the moon and the Earth are in a straight line.
What is a lunar eclipse?
The Earth is in between the sun and the moon and the earth casts a shadow on the moon.
What is a solar eclipse?
The moon is between the sun and the earth and the moon casts a shadow on the earth.
What is day?
At any time half the Earth faces the sun.
