Cultural heritage is everything we inherit from the past, like old buildings, art, music, and tradit
[801호]
SpaceX’s Starship is a giant reusable rocket designed to travel into space, return to Earth safely
[800호]
Maps help us find places, but how are they created? Cartographers, or mapmakers, gather information
[799호]
Tempo is the speed of a song. It tells musicians how fast they should play. We measure tempo using b
[798호]
The golden ratio can be found everywhere in nature. Picture a Nautilus shell ? its spiral also fol
[797호]
A compass is a tool that shows directions. Inside a compass, a small, magnetized needle aligns with
[796호]
Photographic film is a strip of light-sensitive material that captures images. It contains tiny silv
[795호]
Think of your immune system as your personal bodyguard, always alert for trouble. It immediately res
[794호]
Fossils are the remains or impressions of things that lived long ago. An animal or plant must be bur
[793호]
Evolution is a process where living things change over time to survive in their environment. For exa
[792호]
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