Vocabulary
What is the name of the force that holds the planets in their orbit?
Gravity
What is the order of the seasons?
Winter, Spring, Summer, Fall
How many high tides occur each day?
2
What three space bodies do we study in the seasons and tides unit?
Earth
Moon
Sun
What is the imaginary line that things rotate on?
AXIS
What is the other term for "spin"
Rotate
If the northern hemisphere is tilted away from the Sun, what season are they experiencing?
Winter
The gravity from which space body has a bigger impact on the Earth's tides? Sun or Moon?
MOON
True or False: The Earth rotates around the Sun
FALSE: the Earth REVOLVES around the Sun
Why are the seasons "opposite" in the Northern Hemisphere than the Southern Hemisphere?
If one hemisphere is tilted towards the Sun (Summer) then the other hemisphere is equally tilted away (Winter) in the other hemisphere.
What is the other term for "orbit"
Revolve
What 2 factors cause seasons on Earth?
The tilt of earths axis and its revolution around the sun
TRUE OR FALSE: high tide is always facing the Sun
FALSE: high tide always faces towards the MOON
What causes the Day/Night cycle?
Earth's rotation on its AXIS
What would seasons be like of Earth had a 0 degree tilt? (no tilt, straight up and down)
NO seasons. You would experience the same weather all year long. Climate only changes if you travel more North or South away from the equator.
What is a hemisphere? What separates them?
ANSWER BOTH FOR FULL POINTS
Hemisphere: half a sphere or half of the Earth
Equator separates the North and South
What seasons experience equal amounts of daylight and darkness? (Also equal direct and indirect light)
Spring and Fall
What type of tide has the LARGEST tidal range?
Spring Tides
How long does it take the Moon to orbit the Earth?
approx 27.3 days
or
"1 month"
What causes the change from HIGH tide to LOW tide?
Earth's rotation on its axis.
Define: Tidal Range
The difference between high tide and low tide.
Describe the difference between direct and indirect light.
Direct light is light that is hitting the surface of Earth from almost directly above. Indirect light is light that is hitting the Earth's surface from a lower angle, ,and it is spread across the ground more than direct light.
Direct: hotter, more energy, Summer
Indirect: cooler. less energy, Winter
How long does it take for you to go from a Spring Tide to a Neap Tide?
approx 1 week
The Sun's gravity is holding us in orbit and keeping us from flying away into space. But what is keeping us from being pulled into the Sun by its gravity?
We are orbiting so fast around the Sun that the speed perfectly balances out the force of the Sun's gravity. This balance was established billions of years ago when the solar system was first formed.
Describe a scenario that would cause you to experience either 24 hours of daylight or 24 hours of darkness.
If you are living at the North or South pole in the Summer you can experience 24 hours of daylight. If it is Winter, you could experience 24 hours of darkness.