Space Items
Planets
Vocab I
Vocab II
Astronomers
100

A device that expels gas in one direction to move in the opposite direction.

What is a rocket.

100

The shape planets orbit in.

What is ellipse.

100
The reaction force that propels a rocket forward.

What is thrust.

100

A meteoroid that reaches Earth's surface.

What is a meteorite.

100

Copernicus thought the solar system was this.

What is heliocentric (sun centered).

200

A space craft that can carry a crew into space, return to Earth, and be used again.

What is a space shuttle.

200

Pluto is classified as this.

What is a dwarf planet.

200

Life not from Earth.

What is extraterrestrial.

200

The solid inner core of a comet.

What is the nucleus.

200

The reason astronomers can see the surface of Mars clearly, but not Venus's.

What is because Venus has a very thick atmosphere.
300

An artificial satellite where people can live and work for long periods.

What is a space station.

300

The types of planets that have rings.

What are gas giants.

300

How fast you have to fly to fall into Earth's orbit.

What is orbital velocity.

300

The halo around the sun, it means crown.

What is the corona.

300

This astronomer recorded the positions of the planets for 2 years.

Who is Tycho Brahe.

400

Any object that revolves around another object in space.

What is a satellite.

400

The region between Mars and Jupiter.

What is the asteroid belt.

400

How fast you have to fly to escape Earth's orbit.

What is escape velocity.

400
The theory that Earth is the center of the universe.

What is geocentric.

400

This astronomer analyzed the data from Tycho Brahe and discovered that the orbits are ellipse.

Who is Johannes Kepler.

500

Name the 3 types of rocket fuel.

What is solid, liquid, and ion.

500

The region that extends past Neptune's orbit and is full of comets.

What is the Kuiper Belt.

500

Getting info without being in direct contact with it.

What is remote sensing.

500

Streams of electrically charged particle.

What is solar wind.

500

Two reasons astronomers believe there was once water on Mars.

-Ice at polar ice caps

-Huge canyons that look like coast line.

-Ancient features of streams/lakes/floods