Moon Phases, Eclipses and Tides

30 terms by amymcgee 

Ready to study?
Start with Flashcards

Create a new folder

Advertisement Upgrade to remove ads

Waxing Crescent

First Quarter

half full

Waxing Gibbous

Waning Gibbous

Third Quarter

exactly half

Waning Crescent

Waxing

To increase gradually in size. The illuminated part of the moon is getting bigger.

Waning

To decrease gradually in size. The illuminated part of the moon is getting smaller.

Crescent

Less than half of the moon is fully illuminated

Gibbous

More than half, but less than fully illuminated

Quarter

One half of the moon (facing Earth) appears to be illuminated.

Gravity

the force of attraction between any two objects in the universe.

High tide

the maximum height reached by a rising tide.

Low tide

the minimum height of a falling tide.

Neap tide

a tide with the smallest difference between high and low tide. occurs when the Sun, Moon, and Earth form a right angle. Occurs during first quarter and last quarter phases.

Range

the difference between the greatest value and the smallest value. To find this you subtract the smallest value from the greatest value.

Spring tide

a tide with the biggest difference between high and low tide. Occurs when the Sun, Moon, and Earth are aligned (in a line). Occurs during new moon and full moon phases.

Tides

The regular rise and fall of the level of water in the ocean.

Phase

One of the different shapes of the moon as seen from Earth.

Eclipse

The partial or total blocking of one object by another.

Lunar Eclipse

The Earth blocks the sunlight from reaching the moon. This occurs when the moon is in the full moon position.

Solar Eclipse

The moon blocks the sunlight from reaching the Earth. From Earth we can't see the sun. This occurs when the moon is in a new moon position.

Umbra

The darkest part of a shadow where a total eclipse will occur.

Penumbra

The lighter part of the shadow surrounding the umbra where a partial eclipse will occur.

Total solar eclipse

a complete blocking of the sun. occurs when you are standing in the moon's umbra.

Total lunar eclipse

a complete blocking of the sunlight from reaching the moon. occurs when the moon is completely in the Earth's umbra

partial solar eclipse

part of the sunlight is blocked by the moon. occurs when you are standing in the moon's penumbra

partial lunar eclipse

part of the sunlight is blocked from reaching the moon. occurs when the moon is partly in the umbra and partly in the penumbra.

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com. Click to see the original works with their full license.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set