Term | Definition |
crescent Moon | the curved shape of the visible part of the Moon just before and after a new Moon |
first-quarter Moon | a phase of the Moon in the lunar cycle halfway between a new Moon and a full Moon |
full Moon | the phase of the Moon when all of the sunlit side of the Moon is visible from Earth |
gibbous Moon | The shape of the Moon when it appears to be more than a quarter but not yet full and when it is less than full but not quite a third quarter. |
lunar cycle | the 4-week period during which the Moon orbits Earth one time and goes through all of its phases |
Moon | Earth’s natural satellite |
new Moon | the phase of the Moon when the sunlit side of the Moon is not visible from Earth |
night sky | the time when the sky is dark and certain astronomical objects can be observed, such as the Moon, stars, and planets. |
phase | the shape of the visible part of the Moon |
star | a huge sphere of hydrogen and helium gas that radiates heat and light |
third-quarter Moon | a phase of the Moon in the lunar cycle halfway between the full Moon and the new Moon |
waning Moon | getting smaller |
waxing Moon | getting bigger |
predict | saying what you think will happen |
property | A characteristic that describes a substance, such as color, size, shape or texture |
classify | organizing things into groups based on attributes |
observe | when you see something happen or you look carefully to find out what will happen |
compare | identifying ways that things are the same |
model | an explanation or representation of an object, system, or process that cannot be easily seen or studied |
procedure | doing something a particular way, following steps |
claim | when you say something is true |
evidence | something you believe to be true because you saw, experienced, or read about it |
reason | thinking about something in an orderly, logical way |