Question | Answer |
Which is the characteristic of a comet? | It is made of rock and ice with a tail of gas and dust |
Which planet's orbit is between Earth and the Sun? | Venus |
Which two factors determine the gravitational attraction between two objects? | mass and distance apart |
The Sun appears larger than other starts because of its | distance from Earth |
If Halley's comet was seen without the use of a telescope in 1910 and 1986, when do scientist predict we may be able to see it again in the future? | 2062 |
Spacecraft launched from Earth needs to reach a specific speed to escape Earth's surface to overcome what? | Earth's gravitational force |
Natural satellites such as our moon orbit what? | planets |
Why must scientists exercise while staying in space for long periods of time? | to keep muscle and bones from deteriorating |
For long term space travel, scientists do NOT need to consider what? | escaping Earth's gravity |
When the Soviets launched the first artificial satellite in space, this impacted society because now we have what? | satellites for phones, GPS, and weather |
Why are objects from space usually harmless when they hit Earth? | they burn up in the atmosphere |
Mars' orbit is shorter or longer than Earth's orbit around the sun? | longer |
Mercury's orbit is shorter or longer than Earth's orbit around the sun? | shorter |
If you have hypothesized that Europa, Jupiter's moon, contains liquid water, and carbon-based life, what would you use to prove your hypothesis? | a probe with instruments |
An alien species needs a planet with a hard surface where they can see the stars. This means the planet cannot have what? | an atmosphere |
Solid object that is smaller than a planet that orbits the sun between Mars and Jupiter is called an | asteroid |
Objects made of iron and nickel that hit Earth after burning up in the atmosphere are called | meteorites |
Humans cannot breathe Martian air because the % of what gas is too low? | oxygen |
One of Jupiter's moons that is believed to have active volcanoes | Io |
Gas giant planets include Jupiter, Saturn, Uranus, and | Neptune |
Venus is very hot because it has a very thick | atmosphere |
Which characteristic of a planet or moon protects it from solar winds? | magnetic field |
If scientists wanted to send a probe to Pluto to see if there is carbon, what instrument would they need to include? | mass spectrometer |
If scientists wanted to send a probe to Mar's to measure the pressure of Mars' atmosphere, what instrument would they need to include? | barometer |
If you sent a probe to Titan to find out if it has earthquakes, what instrument would you need to include? | seismograph |
Mass Spectrometers will only work on what type of probe? | lander |
Atoms stop moving at | absolute zero (-273 degrees Celcius) |
What is considered a "signature" for an element? | spectrogram |