Learn · A library for curious minds
The Thousand-Year Ledger
Where storybook questions meet real-world discoveries. Open a page and look a little closer.
ScienceGrade 1 · A closer look
How light helps us see
A toy can stay in the same place and become easier to see. Follow the light to find out why.
Open this page ScienceGrade 1 · A closer lookA small toy, a big shadow
A shadow can change while its maker stays exactly the same.
Open this page ScienceGrade 1 · A closer lookThe secret in a twang
Watch a plucked rubber band. That quick wiggle has a name: vibration.
Open this page ScienceGrade 1 · A closer lookLoud, soft, high, low
A sound can be high and soft at the same time. Loudness and pitch tell us different things.
Open this page ScienceGrade 1 · A closer lookWhen a flash means “ready”
A light or sound can carry a message—but people need to agree on what it means.
Open this page