The Earth
Seasons & Time
Moon Phases
Gravity
100
Earth is a round 3-dimensional object known as...
What is a sphere
100
What give us time (night/day, months, years) on Earth?
What is Earth's movement
100
Just like Earth, moon has its own movements… what are unique about them?
What is rotation and revolution, they take the same amount of time to complete.
100
How do we see gravity working on Earth?
What is the earth's gravity pulls us towards it's center, we cannot float
200
We know the Earth is a sphere because what two things are the same from the center to every outer edge?
What is distance and gravitational pull
200
When an object spins around it's axis, that is known as what? What does Earth's spin around it's access give us?
What is a rotation giving us night and day or the counting of our days.
200
In what way do we see the moon affecting Earth?
What is by the rise and fall of it's tides: high tide and low tide
200
What kind of objects have a gravitational force between them?
What is all objects
300
Earth has a magnetic field produced by what? What does this magnetic field protect us from?
What is produced by Earth's rotation and movement of matter in it's core. It protects us from harmful sun radiation.
300
Because the Earth rotates 360 degrees in around 24 hours, we created time zones that measure how many degrees every how much time?
What is 15 degrees every hour
300
How much of the moon is ALWAYS illuminated by the sun? Does it ever change?
What is half of the moon, no the sun never covers more or less of the moon.
300
What are the two influences on gravity?
What is the objects' masses and the distance between them
400
Earth orbits around the sun in a path shaped like what? What is this orbit called & how long does it take to complete once?
What is it travels in an ellipse & is called Earth's revolution which takes around 365 days to complete once.
400
Which of Earth's movements counts our years and helps give us seasons? What is the other factor of Earth that gives us seasons?
What is Earth's revolution and it's tilt on it's axis.
400
What are the differences between a solar and a lunar eclipse?
What is solar eclipse happens when the moon is directly between the sun and earth, casting a shadow on the earth. Lunar eclipse is when the moon moves into earth's shadow, making a shadow of earth appear on the moon.
400
How does distance affect gravity? How does mass affect gravity?
What is closer together = more gravity (further away = less gravity), more mass = more gravity (less mass = less gravity)
500
What is an aurora and how does it happen?
Auroras are lights caused by particles from space colliding with atoms at Earth's magnetic poles. Northern and Southern Lights.
500
How does Earth's tilt give us seasons?
What is the hemisphere tilted towards the sun has direct sunlight (higher angles) which is hotter and longer, the one titled away has indirect (lower angles) sunlight which is colder and shorter.
500
Why do we SEE different moon phases?
What is the moon revolves around the earth, as it does so earth can see different portions of the bright and dark sides of the moon, making the moon appear in different phases.
500
What does gravity in space look like?
What is gravity in space pulls objects into a curved path. Larger masses tell space how to curve, that curved space tells smaller masses how to move- in an ellipse
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