#RFB-11000712Reading: Fill in the BlanksAcademic,CoreHard
Zigzag Lightning
Official Question Material
Prep: Varies
Why does lightning zigzag across the sky, instead of [blank] in a straight line between a thundercloud and the ground? Many of the [blank] of lightning remain a mystery, although researchers are starting to [blank] the reason behind lightning's crookedness. A study suggests that the [blank] zigzag pattern of lightning is caused by a highly conducting form of oxygen that builds up irregularly as the bolt travels toward the ground.
Sample Answer & Audio Transcript
Why does lightning zigzag across the sky, instead of discharging in a straight line between a thundercloud and the ground? Many of the mechanisms of lightning remain a mystery, although researchers are starting to untangle the reason behind lightning's crookedness. A study suggests that the characteristic zigzag pattern of lightning is caused by a highly conducting form of oxygen that builds up irregularly as the bolt travels toward the ground.
Instant AI Speech & Writing Feedback
Practice This Question with Real-Time AI Scoring
Record your voice or submit your writing to get official Pearson-aligned scores (10-90) across Oral Fluency, Pronunciation, Grammar, and Content in 1.2 seconds.
Pearson Official Scoring Guide for Reading: Fill in the Blanks
Scored Enabling Skills
- Communicative Skills & Enabling Skills
Timing Standard
Response Window: Official Pearson Exam Standard
💡 Examiner Strategy & Pro Tip:Maintain focus on accuracy, timing, and Pearson automated scoring rubrics.