Space Grade 9 Test

I’ll be adding new terms to this. It’s not always gonna be up to date. Also, my quizlet doesn't have everything you should study for. Only definitions Love Jubilee❤️

Planet

Planet

A planet is a large celestial body that’s revolves around the sun in the same orbit for millions and billions of years.

Asteroid

A asteroid is a small rocky object that orbits around the sun.

Comet

A comet is ice with chucks of rock. We can see comets when they reflect the suns light off them.

Orbit

Orbit is a repeating path that an object revolves around. (Eg. Planets, Satellites, Asteroids).

Revolution

Revolution is how long it takes for an object takes to do a full orbit around the sun(It takes our planet 365 days to orbit the sun)

Rotation

The circular movement of a object around its own axis.

Star

A star is a bright hot light in space which is mostly made of hydrogen and helium.

Sol

Sol is the definition of a day on Mars.

Jovian

Jovian is another term for Gas giants. This includes Jupiter, Saturn, Uranus, Neptune. These planets are farther away from the sun.

Terrestrial

Terrestrial is another term for rock planets. This includes Mercury, Venus, Earth, Mars. These planets are closer to the sun.

Solar System

The collection of our 8 planets, their moons and space objects orbiting around the sun.

Elliptical

Elliptical is the shape of Earths orbit. Meaning that earths orbit is in a oval shape.

What are the 2 different satellites

Satellites 1 are man made objects sent up to space to help us with GPS and other things. Satellite 2 is anything else in space that orbits the sun(planets, asteroid’s, comets, etc.)

Why do we have seasons

The earth is always on an axis. During the summer in the Northern Hemisphere, the northern hemisphere is tilted on an axis closer to the sun which means we get the most sun rays. In the winter, we are rillte on an axis away from the sun, making us get less of the sun rays. Visa versa for the southern hemisphere.

What is spin-off technology?

Spin-off technology is technology developed with NASA’s help, technology, funding and/or expertise

What is the biggest planet?

Jupiter is the biggest planet in our solar system

What is the smallest planet?

Mercury is the smallest planet in our solar system

What is the northern star in the northern hemisphere?

Polaris

What is the closet planet to the sun?

Mercury is the closet planet to the sun

What is the farthest planet form the sun?

Neptune

What was Apollo 11 destination

Apollo 11 destination was for the moon

Axis

A straight line through the earth from North to south

What is the coldest planet?

Uranus is the coldest planet

What is the hottest planet?

Venus is the hottest planet