Nile River- The longest located in East Africa.
Rotation - The earth spinning on the axis.
Revolution - A object going around another object.
Calendars - Shows the days in a month and months in a year.
Seasons - Differences in the weather.
Earth's tilt - Earth has seasons because of the axis is tilted.
June - Earth is tilted towards the sun.
December - Earth is tilted the opposite side from June.
March - Neither axis is tilted towards the sun.
September - Neither axis is tilted towards the sun.
Moon Motion - Rotates around earth.
Phases - Stages in a proccess.
Solar eclipse - The moon covers the sun.
Lunar eclipse - Happens when earth is between the sun and the moon.
High tides - The moon pulls on to the water.
Spring tide - The big difference between the high and low tides.
Neap tides - The smallest difference between the high and low tides.