SUNSET, TWILIGHT
The red and orange colors during sunset are caused by __________ scattering.
Rayleigh
Gegenschein, aurora borealis, and half moon are some of the special phenomena that happen during evening skies? True or False.
False. Gegenschein, aurora borealis, and full moon are some of the special phenomena that happen during evening skies.
The four seasons on Earth are caused by the _____ of the Earth's axis and its orbit around the Sun.
tilt
How many days does it take for the Moon to complete one full cycle of phases?
About 29.5 days
The CME does not harm Jupiter itself because the planet has a strong ______ that protect it.
magnetic field.
During which stage of twilight is it still bright enough to do outdoor activities?
A. Astronomical Twilight
B. Nautical Twilight
C. Civil Twilight
D. Midnight
C. Civil Twilight
The sun reflects off ____ to create the cone-shaped white light.
a) sun particles
b) dust particles
c) magnetosphere
dust particles
Why do the Northern and Southern Hemispheres experience opposite seasons?
A. Because of Earth’s rotation speed
B. Due to Earth's changing distance from the Sun
C. One hemisphere tilts toward the Sun while the other tilts away
D. The Moon’s gravitational pull
C. One hemisphere tilts toward the Sun while the other tilts away
Penumbra is the ____________________ part of the Shadow.
Lighter
Why does the Sun glow?
A. Because it reflects light from nearby stars
B. Because it constantly produces energy through nuclear fusion at its core
C. Because it burns oxygen in its atmosphere
D. Because it absorbs energy from the planets around it
B. Because it constantly produces energy through nuclear fusion at its core
What major natural event caused worldwide colorful sunsets in 1883?
A. Tonga volcanic eruption
B. Meteor shower
C. Krakatoa volcanic eruption
D. Solar eclipse
C. Krakatoa volcanic eruption
Coronal mass ejection (CME) contains particles that collide with ____ and ____ gases in the Earth's atmosphere to form aurora borealis (oxygen / carbon dioxide / nitrogen)
oxygen & nitrogen
Earth's precession slowly shifts the direction of its axis, which can affect _____ over thousands of years.
climate
Micromoon occurs when the Moon is at the perigee. True or False?
False. Micromoon occurs when the Moon is at the apogee.
What is the main difference between a solar flare and a coronal mass ejection (CME)?
A. A solar flare releases a burst of electromagnetic radiation, while a CME ejects a large cloud of plasma and magnetic field into space
B. A CME happens faster than a solar flare and only emits light
C. A solar flare involves the expulsion of plasma into space, while a CME emits only ultraviolet radiation
D. Both solar flares and CMEs are exactly the same, with no differences
A. A solar flare releases a burst of electromagnetic radiation, while a CME ejects a large cloud of plasma and magnetic field into space