Earth
About how long does it take Earth to complete one revolution around the Sun?
1 year
How is the moon illuminated?
It reflects light from the sun.
What occurs when the moon blocks the view of the Sun?
Solar Eclipse
What are the inner planets called?
Terrestrial
What was first launched during the Space Race?
satellite
What movement causes day and night on Earth?
Rotation of Earth
During which phase does Earth see more than half of the moon’s surface?
Waxing Gibbous
During which phase of the moon does a lunar eclipse occur?
Full Moon
Three words that best describe the composition of the inner planets?
rocky, solid, dense
What uses electromagnetic radiation to discover the properties and composition of bodies in space?
What does Earth’s rotation on its axis cause?
Night and Day
How long is the lunar cycle?
27.3 days
Why do lunar and solar eclipses not happen every month?
The moon's axis does not always align with the Earth's shadow
Which is one characteristic that Mars and Earth share?
Seasons
Which space project, a joint effort of many countries, was built to allow space to be studied continually?
International Space Station
Describe gravity.
The force that pulls objects towards Earth's center
During which moon phase do spring tides occur?
new and full
What occurs during a solar eclipse?
The moon's shadow falls on Earth.
Describe the motion of all the outer planets?
Fast rotation, slow revolution
The Chandra X-ray Observatory, the Hubble Space Telescope, and the Spitzer Space Telescope are a part of NASA’s fleet known as which of the following?
Great Observatories
What is a force that creates the tides on Earth?
Gravity
The change in the appearance of the Moon during its cycle is caused by __?
The relative positions of Earth, the Moon, and the Sun.
All of the following modern conveniences are the result of a device developed for use in the space program EXCEPT–
Velcro strips.
microwave ovens.
hand-held calculators.
electric generators.
electric generators.