Tides
This force is primarily responsible for causing ocean tides.
What is gravity?
The Moon takes about this many days to complete a full cycle of phases.
What is about 29 days?
This darker, cone-shaped part of an eclipse’s shadow causes a total eclipse.
What is the umbra?
This space object is larger than a meteoroid and is commonly found orbiting the Sun.
What is an asteroids?
This force keeps the moon in a regular orbit around Earth.
What is gravity?
This type of tide occurs when the Sun and Moon are aligned with Earth.
What are spring tides?
This is the approximate number of days it takes the Moon to revolve around Earth.
What is about 27.3 days?
A lunar eclipse occurs when the Moon is positioned in this way relative to Earth and the Sun.
What is when Earth is between the Sun and the Moon?
These are small chunks of rock and iron that travel through space before entering Earth’s atmosphere.
What are meteoroids?
Decreasing this factor increases the force of gravity between two objects.
What is distance?
The Moon causes tides by pulling ocean water into bulges that move as Earth rotates.
What is gravitational pull?
This amount of the Moon is always reflecting sunlight, even when we can’t see it all.
What is one half?
This time of year gives the Southern Hemisphere the fewest hours of daylight.
What is the winter solistice?
This term describes a meteoroid that burns up as it moves through Earth’s atmosphere.
What is a meteor?
Early models placed Earth at the center of the solar system, but modern models place this object at the center.
What is the sun?
These tides have the greatest difference between high and low water levels.
What are spring tides?
The Moon must be in this phase for a lunar eclipse to occur.
What is a full moon?
All planets in the solar system share this characteristic.
What is a similar orbital shape?
Astronauts encountering many rocky objects of different sizes in space most likely encountered these.
What are asteroids?
The sun is located in this type of galaxy.
What is a disc-shaped galaxy?
The Moon must be in this phase for a solar eclipse to occur.
What is a new moon?
Based on diameter, this planet is about 11 times wider than Earth.
What is Jupiter?
This galaxy contains the solar system.
What is the Milky Way?