To travel around something else in a circular path
What is revolution?
the force of attraction between two objects
What is gravity?
the condition of the atmosphere at a given time and place
What is weather?
the movement of energy from one place to another
What is energy transfer?
when water vapor (gas) touches a cool surface and turns to liquid
What is condensation?
turning around on an axis
What is rotation
the phase of the moon when the sunlight side of the moon is not visible
What is new moon?
the two main gases in air
What is nitrogen and oxygen?
how much mass is in an object
What is density?
when liquid water dries up and goes into the air
What is evaporate?
the star positioned directly over Earth's North Pole, also known as Polaris
What is the North Star?
a group of stars in a pattern given a name by people
What is constellation?
anything that takes up space and has mass
What is matter?
a circular movement of fluid (such as air) that is the result of uneven heating
What is convection current?
the average or typical weather conditions over time in a region of the world
What is climate?
Causes day and night
What is Earth's rotation in its axis?
a phase of the moon in a lunar cycle halfway between new moon and a full moon
What is first quarter?
part of the atmosphere where weather happens
What is the troposphere?
Uneven heating of Earth by the sun causes....
What is wind?
percent of fresh water on Earth
What is 3%?
direction that shadows point at sunrise
What is west?
length of time between a new moon and full moon
What is two weeks?
water vapor in the air
What is humidity?
Three ways energy transfer happens
What is convection, conduction and radiation?
the four parts of the water cycle
What are precipitation, condensation, evaporation and accumulation?