H
He
Li
Fe
Au
Pt
U
Na
O
C
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Periodic Table
Browse all 118 elements with detailed info. Play Build the Molecule or Element Trivia Blitz.
E=mc²
F=ma
λ
∇
∿
Physics Lab
Launch projectiles and hit targets. Set angle & velocity — watch the parabolic arc — learn kinematics.
Crimson
Cobalt
Emerald
Amber
◑
Color Name Challenge
A color appears — can you name it precisely? Crimson vs Scarlet, Cobalt vs Cerulean. Four close options each round.
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🇧🇷
🇫🇷
🇳🇬
🌍
Flag Guesser
A flag appears — which country does it belong to? Pick from four options and see how many you know.
37.4M
$460M
112
389
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Higher or Lower
City populations, movie budgets, animal speeds — guess which number is bigger and keep your streak alive.
DNA
ATP
RNA
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◎
Biology
Explore organelles, DNA replication, cellular respiration and metabolic pathways.