Plants are moving all the time. But they move so slowly we just don’t notice these movements. Instead of moving from one place to another, as animals do, plants move by growing. As a plant grows, it…
You want your electric clock to run day and night. But you wouldn’t want your doorbell ringing all the time! Things like doorbells, lamps, and radios work only when you turn them on. Most things…
> Grimly, Father Hidalgo, priest of the little Mexican community of > Dolores, tugged at the rope that rang the church bell. He was calling > the people to church earlier than usual on this Sunday…
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