most of the sun's rays hit this area of Earth, causing it to be one of the warmest.
What is the equator?
the Moon takes about this many days to orbit the Earth.
What is 28 days?
This is a force that weighs down objects.
What is gravity?
This means to spin on a center point.
What is rotate?
it takes the Earth about this many days to make a full orbit of the Sun.
What is 365 days?
This is a large piece of rock or metal flying in space that is left over from the planets.
What is an asteroid?
the sun also contains this other type of gas, with the letters He on the periodic table.
What is Helium?
This is an object that moves around Earth and sends messages and pictures to help us learn about space.
What is a satellite?