Seasons
Lunar Phases
Eclipses
Tides
Equinox/Solstice
100

What would happen if Earth didn't have a tilt?

The Earth will have no seasons

100

What do you call a lunar phase when people on Earth can see the whole moon?

A full Moon.

100

If Earth's or Moon's orbit changed, would there still be an eclipse?

No.

100

What are tides?

The daily rise and fall of the ocean near the coast.

100

What is the shortest day of the year in the Northern Hemisphere?

The Winter Solstice.

200

What is the degree of tilt of Earth? And what is the main reason why we have seasons?

23.5

Earth's tilt.

200

What is the lunar phase where the moon isn't visible?

A new Moon.

200

How long does a total Solar Eclipse last?

few minutes (any answer that is less than 10 minutes will also count)

200

What are the two types of tides?

Neap and Spring tide.

200

What is the longest day of the year in the Northern Hemisphere?

The Summer Solstice.

300

When the northern hemisphere is tilted by the Sun, then what is the season for the southern hemisphere?

Summer.

300

How does the Moon move and what are the 8 phases of the Moon?

The Moon moves counterclockwise.

The 8 phases are:

New Moon, Waxing Cresent, 1st Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, 3rd or final Quarter and Waning Cresent

300

Is there a penumbra for the Lunar Eclipse?

Yes.

300

Where did spring tide get its name from?

The word “spring,” which means to rise, jump, or burst upward.

300

What is the difference between a solstice and an equinox?

A solstice is when a hemisphere experiences its longest or shortest day of the year, while an equinox is when day and night are equal in length.

400

What would happen if Earth's tilt got greater?

Seasons would be way stronger

400

Why do rocks from the Moon look like Earth rocks?

It was once part of Earth until a force cause a collision and created the Moon.

400

Are Solar Eclipses rarer or more common?

Rarer.

400

What causes spring tides to have a greater difference between high and low tides than neap tides?

The Sun, Moon, and Earth line up, causing the Sun's and Moon's gravitational pulls to work together.

400

Where do equinoxes and solstices come from?

Equinoxes and solstices happen because Earth is tilted on its axis as it orbits the Sun.

500

Earth's orbit is an ellipse. When the distance between Earth and Sun is the farthest, it is called...

Apheilion.

500

How long does each phase last?

About 3 days.

500

Why doesn't a solar eclipse happen during every new Moon?

Because the Moon's orbit is tilted compared to Earth's orbit, so the Sun, Moon, and Earth don't line up perfectly with every new Moon.

500

Why do neap tides have a smaller difference between high and low tides?

The Sun and Moon are positioned at right angles to each other, so their gravitational pulls partly work against each other.

500

How does the speed of Earth's orbit affect the length of seasons?

The Earth moves very fast in the Winter Season, but very slow in the Summer season. That is why we have solstices. Equinoxes are the midpoint between the two solstices.