Seasons
Solstice/Equinox
Chromatography
Moon Phases
100
the season here when the Northern Hemisphere is tilted away from the sun
What is winter?
100
the official first day of winter, according to the calendar
What is the Winter Solstice?
100
the pigment that makes the leaves green
What is Chlorophyll?
100
the phase of the moon when it is between the Earth and the sun
What is a new moon?
200
this causes the earth to have seasons
what is axial tilt?
200
The part of the Earth that is closest to the sun during an Equinox
what is the equator?
200
the word for a type of mixture when something is dissolved in a liquid
what is a solution?
200
The word for a moon phase when it is more than half but not quite whole
What is gibbous?
300
the number of rotations Earth completes during one revolution
what is 365.25?
300
the imaginary lines around the Earth where the sun points most directly at the solstices (and the direct point stays between these all year round)
What are the tropics?
300
the word for the liquid in which something is dissolved
What is the solvent?
300
The amount of the moon that is always lit by the sun
what is half?
400
the season for North America when the earth is in position C
what is fall?
(remember to follow the arrows for the direction the earth is traveling in its orbit)
400
What happens to the sun's intensity as the angle of it gets further from 90 degrees
What is decreases?
400
a molecule that gives something color
what is a pigment?
400
The side of the moon that is lit up when it is waxing
What is the right?
500
a CER about polar day in summer and polar night in winter
C: Polar day and polar night are caused by the tilt of Earth's axis
E: in summer the pole gets direct sunlight throughout its rotation and in the winter there is no sunlight throughout the rotation
R: the rotation is what causes the alternation of day and night but the tilt of the axis makes it so that at certain times of year the pole is tilted far enough toward or away from the sun that the rotation doesn't matter
500
A CER about the equinox
C: the equinox is a date when day and night are equal lengths all over earth
E: in the spring and fall there is a day when even the poles have an equal number of hours of daylight and darkness
R: at the equinox, the axis of earth is not tilted toward OR away from the sun; the part of the earth closest to the sun is the equator so as the earth rotates, all of it gets equal duration of exposure (remember that time is not the same as intensity, it will still be colder at the poles than the equator because of the angle of the sun in the sky)
500
a CER about leaves changing color in the fall
C: the leaves change color in the fall because of the seasons
E: the other colors are there all the time but the chlorophyll hides them
R: the daylight hours get shorter in the fall and the chlorophyll can't get enough sun so the tree stops making it
500
a CER about moon phases
C: the moon has phases when it's shape seems to change over the course of the month
E: the moon appears to increase in size over the course of two weeks to a full circle and then decreases over two weeks until it disappears and then starts increasing again
R: the moon revolves around the earth and the relative positions of the Earth, moon, and sun mean that different amounts of the lit side of the moon are visible from earth