Free 2026 practice
From Anatomy to Codebusters, practice every event.
Filter all Division B and Division C events, open the verified event page, and start with practice that explains the misconception behind each miss.
Subjects
46
Free quizzes
110
Divisions
B + C
Edition
2026
Question of the day
Disease Detectives
In an outbreak investigation, which measure counts new cases during a defined time window?
Incidence
Incidence tracks new cases. Prevalence tracks all existing cases, so mixing them up is a common epidemiology misconception.
Subject directory
Find your 2026 event
46 of 46 events shown
Disease Detectives
Entomology
Heredity
Water Quality
Dynamic Planet
Meteorology
Remote Sensing
Rocks and Minerals
Solar System
Circuit Lab
Crime Busters
Hovercraft
Machines
Potions and Poisons
Boomilever
Helicopter
Mission Possible
Scrambler
Codebusters
Experimental Design
Metric Mastery
Write It Do It
Anatomy and Physiology
Designer Genes
Disease Detectives
Entomology
Water Quality
Astronomy
Dynamic Planet
Remote Sensing
Rocks and Minerals
Chemistry Lab
Circuit Lab
Forensics
Hovercraft
Machines
Materials Science
Boomilever
Electric Vehicle
Helicopter
Robot Tour
Bungee Drop
Codebusters
Engineering CAD
Experimental Design
Mastery, not memorization.
Quiz, diagnose, adapt, retest.
Competition prep works best when every attempt turns into a clear next action. This loop helps students see the gap, practice the right concept, and confirm progress before moving on.
Quiz
Start with a focused practice set that maps questions to concepts and cognitive depth.
Diagnose
Review explanations that name the misconception, not just the correct answer.
Adapt
Use mastery signals to choose the next concept before practice gets too broad.
Retest
Return to the gap after review so students can prove the learning stuck.
Questions parents, coaches, and students ask
Practice with context.
Clear answers help learners choose the right path, understand why it matters, and start with a focused practice step.