What is an invention?
An invention is a new tool, machine, or idea that solves a problem. Some inventions are small, like a windshield wiper. Others changed how EVERY person on Earth lives, like writing, the printing press, and the internet!
Inventions build on each other. The wheel led to carts, carts led to trains and cars... and one clever idea can spark thousands more.
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The Timeline Race
Where does each invention go? Tap the right gap before time runs out!
An invention card appears. Tap the ⬇ gap on the timeline where it belongs: earlier inventions on the LEFT, later ones on the RIGHT. Answer fast for bonus points, and build a streak for a multiplier! You have 3 ❤️.
Invention Chains
Change creates more change!
No invention appears out of nowhere. Every inventor builds on the ideas of people who came before. Isaac Newton once wrote that he could see farther because he was "standing on the shoulders of giants."
Put each chain in order, from the first idea to the last.
What problem did it solve?
Which Inventions Changed the World MOST?
There's no single right answer. Defend YOUR thinking!
Think like a historian. Ask: How MANY people did it affect? Did it save lives? Did it lead to MORE inventions? Could we live without it today?
Tap 5 inventions in order: your #1 first.
Invention check
The Collector Card vault is locked!
Earn all 4 badges to unlock 6 packs of inventor cards.
Inventor Collector Cards
Tap a pack to open it. Tap any card to flip it over!
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Portraits are artist's illustrations. ✨ Holographic cards are Legendary!