Earth's tilt and Seasons Test
It can also be called on what?
1 day
How many degrees does the Earth tilt?
23.5 degrees
The Earth is tilted on its axis how many degrees?
23.5 degrees
How long does it take the earth to spin around on its axis one time?
24 hours
It takes the Earth how many days to go around the Sun?
365 and 1/4 days
How long does it take the Earth to rotate fully around the sun?
365 and 1/4, 1/4, 1/4, 366
Which sentences are true about Earth's seasons? A. Earth is closest to the sun when it is summer in the Northern Hemisphere B. The hemisphere that is tilted away from the sun has more daylight than the other hemisphere C. When it is summer in the Northern Hemisphere it is winter in the Southern Hemisphere D. In December, there are fewer hours of daylight and less direct sunlight in the Northern Hemisphere
C. When it is summer in the Northern Hemisphere it is winter in the Southern Hemisphere and D. In December, there are fewer hours of daylight and less direct sunlight in the Northern Hemisphere
What is the name of the green pigment in plants that is affected by the number of hours of sunlight?
Chlorophyll
when does the winter solstice begin?
December 21
How does the amount of sunlight affect plants in spring?
Flowers and other plants sprout
Where is Chlorophyll found in?
In Chloroplast
When are the days the longest they will be all year?
In the Summer
Does the axis go straight up and down, or is it tilted?
It's tilted
when does the summer solstice begin?
June 21
a year in which an extra day is added because earths revolution around the sun takes 365 and 1/4 days days. This evens out the calendar.
Leap Year
when is the vernal equinox?
March 21
Which hemisphere receives more direct sunlight on June 21?
Northern
What would the seasons be like if Earth's axis were tilted more than 23.5 degrees?
One hemisphere would be extremely cold and the other would be really hot
How does the amount of sunlight affect plants in the summer?
Plants grow rapidly
when is the autumnal equinox?
September 23
Which hemisphere receives more direct sunlight on December 21?
Southern
When during the year is daylight longest?
Summer
When during the year is the Sun highest in the sky?
Summer
what are the four seasons?
Summer, Spring, Winter, Fall
True or False. The moon orbits the Earth?
True
True or False. We can only see one side of the Moon?
True
Lowest?
Winter
It can also be called what?
a year
How does the amount of sunlight affect animals in the winter?
animals begin to hibernate and some migrate
the study of the moon, stars, and other objects in space
astronomy
beginning of fall
autumnal equinox
the imaginary line that passes through Earth's center and the North and South poles
axis
the imaginary line that passes through the Earths center and the north and south pole
axis
Why is there an extra day added to February every four years?
because it takes the Earth 365 and 1/4 days to rotate fully around the Sun. We add the 1/4 because it even out the calendar. It looks like this: 365 and 1/4, 1/4, 1/4, 366
Why does Earth have seasons?
because of the position of the Earth in its rotation around the sun
what does equinox mean?
equal night
when the sun is directly overhead exactly at the equator
equinox
When the Northern Hemisphere is tilted toward the Sun, what seasons will the Southern Hemisphere be having?
fall and winter
a measurement of distance from the equator expressed in degrees
latitude
Why is it colder in winter than summer?
lower angle of the sun's rays and less daily sunlight
earths path as it revolves around the sun
orbit
the path of an object as it revolves around another object
orbit
The hours of daylight affect what two things and cause changes for them when the seasons change?
plants and animals
When the Earth goes around the Sun it is called what?
revolution
the movement of one object around another
revolution
the movement of one object completely around another
revolution
When the Earth spins on its axis, it is called a what?
rotation
the earth spinning on its axis
rotation
the spinning motion of a planet around its axis
rotation
Each 24-hour cycle of day and night is called a(n)?
rotation, day
the four times of the year that are determined by the position of Earth in its rotation
season
In the northern hemisphere, why do you think it is colder in December than in June?
shorter period of daylight and the direct angle of the sun's rays
the two days of each year when the noon sun is directly overhead either the southern or northern hemisphere
solstice
When the Northern Hemisphere is tilted toward the Sun, what seasons is it in that hemisphere?
spring and summer
when the sun is directly overhead in the northern hemisphere
summer solstice
What do the hours of daylight also affect?
the Earth's temperature
What happens in the Northern Hemisphere when there is summer?
the Northern Hemisphere is tilted toward the sun
What happens in the Southern Hemisphere when the Northern Hemisphere is having summer?
the Southern Hemisphere is tilted away from the sun
The energy that keeps our planet going comes from the what?
the Sun
What is at the center of our solar system?
the Sun
Why is it cooler during the winter than the summer?
the angle is lower and the daylight hours are shorter
How does the amount of sunlight affect animals in the fall?
the animals are eating like crazy
How does the amount of sunlight affect animals in the summer?
the animals are more active, the animals start mating and giving birth
How does the amount of sunlight affect animals in the spring?
the birds return to the north
what happens at an equinox?
the length of time at night and day are exactly the same
How does the angle of sun rays relate to the temperature?
the more direct sunlight is, the warmer it gets
How does the amount of sunlight affect plants in the winter?
the plants become dormant
What cause the leaves to change colors?
the presence of chemicals
What causes day and night?
the rotation of the Earth causes day and night
what is the vernal equinox also referred as?
the spring equinox
Why is it warmer near the equator than near the poles?
the sun directly hits the equator
How does the amount of sunlight affect plants in the fall?
the trees stop producing chlorophyll and fall, many leaves change colors
How are the seasons in the southern hemisphere related to seasons in the northern hemisphere?
their seasons are reversed
What would June 21 and December 21 be like on the North Pole and equator?
they would be exactly the same
What are the seasons like on the equator?
they're exactly the same
first day of spring
vernal equinox
Shortest?
winter
when the sun is directly overhead in the southern hemisphere
winter solstice
