Earth's Rotation
$100: Earth rotates on this imaginary line.
What is the axis?
$100: The path Earth takes around the Sun.
What is an orbit?
$100: The natural satellite that orbits Earth.
What is the Moon?
$100: The force that pulls objects toward Earth's center.
What is gravity?
$100: Earth is the third planet from this star in our solar system.
What is the Sun?
$200: The time it takes for Earth to complete one full rotation.
What is 24 hours?
$200: The shape of Earth's orbit around the Sun.
What is an ellipse?
$200: The phase where the Moon looks fully illuminated.
What is the full moon?
$200: The factor that makes an object weigh more or less on different planets.
What is the planet's gravitational pull?
$200: The time when the Sun is directly overhead at the Tropic of Cancer or Tropic of Capricorn.
What is a solstice?
$300: The effect Earth's rotation has on the day and night cycle.
What is it creates day and night?
$300: The number of days it takes for Earth to complete one revolution around the Sun.
What is 365 days or one year?
$300: The phase where the Moon is not visible from Earth.
What is the new moon?
$300: The effect of gravity on the motion of falling objects on Earth.
What is it makes them fall downward?
$300: The halfway point in Earth's revolution around the Sun, resulting in nearly equal day and night.
What is an equinox?
$400: The direction in which Earth rotates when viewed from above the North Pole.
What is counterclockwise?
$400: The tilt of Earth's axis affects this as it revolves around the Sun, causing the seasons.
What is Earth's tilt?
$400: The time it takes for the Moon to go through all of its phases.
What is about one month or 29.5 days?
$400: This happens when there's no air resistance, and gravity is the only force acting on a falling object.
What is free fall?
$400: The name of the imaginary line around Earth that is equidistant from the poles.
What is the equator?
$500: The reason why different parts of Earth experience sunlight at different times.
What is due to the tilt and rotation of Earth?
$500: The reason why we have leap years every four years.
What is because a year is approximately 365.25 days?
$500: The reason the same side of the Moon always faces Earth.
What is synchronous rotation?
$500: The difference between mass and weight, and how gravity affects each.
What is mass is the amount of matter, and weight is the force of gravity on that matter?
$500: The angle of sunlight that causes warmer temperatures at the equator compared to the poles.
What is direct sunlight?