The Tilt
This is the degree of Earth’s axial tilt.
What is 23.5 degrees?
Summer is warmer because sunlight is more ______.
What is direct?
The longest day of the year is called ______.
What is the summer solstice?
When it is July in the United States, this season occurs in Australia.
What is winter?
True or False: The Sun burns hotter in summer.
What is false?
This movement, combined with Earth’s tilt, causes seasons.
What is revolution around the Sun?
In winter, sunlight is spread over a ______ area.
What is larger?
The shortest day of the year is called ______.
What is the winter solstice?
The poles can experience 24 hours of this in summer.
What is daylight?
True or False: Earth rotates once every 365 days.
What is false?
If Earth had no tilt, this would happen to seasons.
What is there would be no seasons (or very little seasonal change)?
Two factors that cause warmer summer temperatures.
What are more direct sunlight and longer daylight hours?
During this event, day and night are nearly equal worldwide.
What is an equinox?
When the Northern Hemisphere has winter, the Southern Hemisphere receives ______ sunlight.
What is more direct (or more concentrated)?
True or False: Earth is slightly closer to the Sun in January.
What is true?
If Earth’s tilt increased to 40°, seasons would become this.
What is more extreme?
This determines how much solar energy is received per square meter.
What is the angle of sunlight?
During an equinox, neither hemisphere is tilted ______ the Sun.
What is toward (or away from)?
This region experiences the least seasonal temperature variation.
What is the equator?
Earth is actually closest to the Sun during this Northern Hemisphere season.
→ What is winter?
If Earth’s axis changed direction as it orbited the Sun, seasons would become this.
What is unpredictable or constantly changing (not consistent each year)?
Even though it’s cold and winter in the Northern Hemisphere, Earth is actually ______ to the Sun.
What is closer?
This hemisphere experiences summer in December.
What is the Southern Hemisphere?
In June, the Northern Hemisphere is tilted ______ the Sun.
What is toward?
If Earth stopped tilting but still revolved, seasons would ______.
What is disappear (not occur)?