The underground "ground zero" where an earthquake actually breaks and begins.
Focus
Earth’s paper-thin skin—you’re standing on it right now, so try not to drop it.
Crust
Your main argument or bold statement that directly answers the question—no waffling allowed.
Claim
The speed demons of the earthquake world that punch through solids, liquids, and gases to arrive at the station first.
P (Primary) waves
The stylish plastic eyewear that guarantees you don't spend the afternoon at the emergency room.
Goggles
The unlucky spot on the map directly above where the quake started underground.
Epicenter
The thickest, gooey middle layer that acts like a slow-moving, super-heated slushie.
Mantle
Cold, hard facts, measurements, or observations that prove you aren't just making stuff up.
Evidence
The dramatic, surface-dwelling slowpokes that roll across the ground like ocean waves and destroy the most property.
Surface waves
The person who needs to know immediately if a beaker shatters, even if it was "totally an accident."
Teacher
Earth’s crack habit—a giant fracture in the crust where rock slabs slip past each other.
Fault
A scorching pool of liquid iron and nickel that spins fast enough to give Earth its magnetic field.
Outer Core
Using your five senses or lab gear to catch reality in the act—no guessing allowed.
Observation
The mathematical difference between the arrival times of P-waves and S-waves, used by scientists to figure out how far away an earthquake occurred.
S-P interval (lag time)
The mandatory hairstyle choice for long hair unless you want your locks transformed into a torch.
Ponytail
The ultimate lie-detector for the Earth, scribbling squiggly lines every time tectonic plates throw a tantrum.
Seismograph
A ball of metal so intensely squished by gravity that it stays solid despite being hot as the Sun.
Inner Core
The brainy bridge connecting your facts to your claim so everyone sees your brilliant logic.
Reasoning
The slower, side-to-side waves that strictly refuse to travel through liquids—proving the outer core is a puddle.
S (Secondary) waves
Gently fanning chemical fumes toward your nose instead of taking a deep, regrettable snort.
Wafting
The famous logarithmic scale that turns a gentle tremor into a headline-news "10."
Richter Scale
Also a famous David Bowie and Freddie Mercury collab, the reason that the inner core stays solid despite being so gosh darn toasty.
Pressure
Playing detective by connecting the clues you observed to figure out what actually happened.
Inference
The geometry power move where scientists draw overlapping circles from three different seismograph stations to pin down an earthquake's exact epicenter.
Triangulation
The emergency water fountain where you get to spend 15 awkward minutes staring directly down if chemicals hit your eyes.
Eyewash station