Charged particles from the Sun hitting the upper atmosphere

Where do auroras usually appear?

In ovals around the magnetic poles

What causes red auroras?

Oxygen very high in the atmosphere

What is a coronal mass ejection?

A huge burst of material from the Sun

Aurora Science Quiz: Solar Wind, Storms and Colors

This aurora science quiz explains how the Sun lights up the polar skies. Play an interactive set of 10 questions on the solar wind, coronal mass ejections, Earth's magnetic field, auroral ovals, green and red oxygen light, nitrogen colors, the Kp index, the 11-year solar cycle, the Carrington Event and the May 2024 storm.

Start Aurora Science Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Source
What causes auroras?
Field
What guides these particles toward the poles?
Oval
Where do auroras usually appear?
Green
Which gas produces the common green glow?
Red
What causes red auroras?
Blue
Which gas adds blue and purple hues?
CME
What is a coronal mass ejection?
Kp
What does the Kp index measure?
Cycle
How long is the Sun's typical activity cycle?
History
Which 1859 solar storm caused auroras near the tropics?

Explanations: answer key for all 10 questions

Q1: What causes auroras?
Answer: Charged particles from the Sun hitting the upper atmosphere
The solar wind carries them.
Q2: What guides these particles toward the poles?
Answer: Earth's magnetic field
They follow field lines.
Q3: Where do auroras usually appear?
Answer: In ovals around the magnetic poles
Strong storms push them wider.
Q4: Which gas produces the common green glow?
Answer: Oxygen
It glows about 100 to 250 km up.
Q5: What causes red auroras?
Answer: Oxygen very high in the atmosphere
Red often appears in big storms.
Q6: Which gas adds blue and purple hues?
Answer: Nitrogen
Lower edges can look purple.
Q7: What is a coronal mass ejection?
Answer: A huge burst of material from the Sun
It can trigger strong storms.
Q8: What does the Kp index measure?
Answer: Geomagnetic activity
Higher numbers mean auroras farther south.
Q9: How long is the Sun's typical activity cycle?
Answer: About 11 years
Auroras peak near solar maximum.
Q10: Which 1859 solar storm caused auroras near the tropics?
Answer: The Carrington Event
Telegraph lines sparked.

Aurora Science Quiz – Solar Wind, Storms and Colors

Auroras form when charged particles from the Sun, carried by the solar wind and bursts called coronal mass ejections, reach Earth. The magnetic field guides them toward ovals around the poles.

When the particles strike gases high in the atmosphere, they make them glow. Oxygen gives the common green and high red colors, while nitrogen adds blue and purple.

The Kp index tracks geomagnetic activity, and auroras are most common near the peak of the Sun's 11-year cycle. The Carrington Event of 1859 and a powerful storm in May 2024 pushed auroras far from the poles.

What This Quiz Teaches

Science fans will enjoy these questions.

What causes auroras
How Earth's field helps
Which gases make colors
How activity is measured
Which storms were famous

Did You Know?

The southern lights are called aurora australis.
Phone cameras can capture faint auroras.
Auroras also occur on Jupiter and Saturn.
Strong storms can disrupt satellites and power grids.
Dark, clear skies give the best views.