moon, planets, meteors, comets
Earth moves in 2 major ways: ____________ and __________.
Rotation & Revolution
What is gravity?
The attractive force between 2 objects; the force that moves objects downhill
Name 3 phases of the moon.
Full, new, 1/3rd quarter, waxing/waning crescent, waxing/waning gibbous
True or false: the moon is only really really cold
False: it's really flipping hot too!
Constellation
Earth has seasons because its ________ is tilted as it revolves around the sun.
A force is a _________ or _________.
Push or pull
The changing positions of __________, _________, and _______ determine the phases of the moon.
The moon is about as wide as what country?
The United States
True or False: A comet is a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
False: Meteor
What is the difference between revolution & rotation?
Rotation is the Earth's spinning on its axis. Revolution is Earth's trip around the sun.
How are mass and weight different? (Which one is determined by gravity?)
What is a tide?
The rising and falling of the Earth's oceans
The dark spots on the moon are called ________?
Maria
The apparent motion of objects in the sky depends on the ______________ of Earth.
In what 2 months do solstices occur?
June & December
The strength of gravity depends on mass and __________?
The distance between the objects
True or false: a neap tide has the highest high tide and the lowest low tide of the month.
False: Spring tide
What caused the dark spots on the moon?
Lava!
What is a satellite?
An object that orbits a planet
In what 2 months do equinoxes occur?
March & September
Inertia and __________ combine to keep Earth in orbit around the sun.
Gravity
The gravitational pull of the _______ and _______ cause tides on Earth.
Billions of years ago a planet-like object collided with Earth. Pieces of that object and Earth flew into space. These objects formed a ring around Earth because of gravity. Over time gravity pulled the objects together and rounded them into the moon