Constellations
How many constellations are there?
88
What is responsible for the change in seasons?
The Earth's Axis
What is the definition of rotation?
"Rotation" refers to an object's spinning motion about its own axis.
What does the word Equinox mean?
"Equal"
What is the Equator?
An equator is an imaginary line around the middle of a planet. An equator divides the planet into a Northern Hemisphere and a Southern Hemisphere.
What are constellations?
A group of stars
23.5 degrees
What is the definition of revolving?
"Revolution" refers the object's orbital motion around another object.
What is an Equinoix? How many times a year does it happen?
There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes
How did ancient people tell time?
People of the past observed changing positions of the sun, moon and stars. They noticed patterns in the motion of these objects. They used these patterns to measure time
What have constellations been used for in the past?
Time, Seasons and Navigation
During the Summer, our hemisphere is pointed towards what?
The Sun
How long does it take for the earth to rotate?
24 hours
What is Solstice? How many times a year does it happen?
The summer solstice occurs at the moment the earth's tilt toward from the sun is at a maximum. Twice a year
What season is associated with the sun high in the sky?
Summer
What is the name of the Big Dipper?
Ursa Major
During the Winter, are our days shorter or longer?
Shorter
How long does it take the Earth to revolve around the sun?
365 days
What are the dates of the Equinox?
March 21 & September 23
What is it called when the sun reaches the highest point in the sky?
Solar Noon
How are you able to locate the North Star?
If you were able to extend the axis pole straight into outer space from the North Pole, it would point to the North Star or also known as Polaris
What would happen if our Earth had no tilt?
f the tilt of the Earth's axis was 0° there would be no difference in how the rays from the sun hit its different regions, and there would be no seasons.
What is responsible for day and night?
We get day and night because the Earth spins (or rotates) on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it.
What are the dates of the solstice?
June 20 & 21/ December 21 & 22
How are we able to use the sun to tell time?
The Sun’s regular movement enables people to determine the time based on the shadows that were cast during various times throughout the day