Planets and Earth Motions
Pluto
What is an uncrewed spacecraft sent from Earth to explore objects in space?
Space Probes
Who was the first person on the moon
Neil Armstrong
Earths rotation is a _________ motion
spinning
What motion of Earth causes day and night
Earths rotation causes day and night
A vehicle designed to propel itself by ejecting exhaust gas from one end?
Rocket
Global Positing System
What produces Earth's revolution around the sun
The Sun's gravitational pull on Earth produces Earths revolution around the Sun
Earth rotates on its rotation axis in a ___________direction
counterclockwise
Reusable spacecraft that transport people and materials to and from space
Space Shuttles
Why do scientists send uncrewed missions to space
Probes are cheaper to build and they can make trips which are too dangerous for humans
What is special about the Kepler mission
Kepler is dedicated to finding Earthlike planets
Why does earth orbit the sun
Gravitational pull
The study of life in the universe
Astrobiology
What does ISS
International Space Station
What two conditions do all materials used in space have to withstand
Extreme pressure and temperature
Name all planets in order
Mercury, Earth, Venus, Mars, Jupiter, Saturn, Uranus, Neptune
The line on which an object rotates
Rotation Axis
What are the three basic needs of all life on Earth?
Liquid water, organic molecules, source of energy
What is a goal of future space
Extend human space travel in the solar system