“I smell brimstone! The Devil must be near!” Long ago, that’s what someone might have said if they smelled sulfur burning. Sulfur was called brimstone, which means “the stone that burns.” Because it…
A sunflower seems to watch the sun. It slowly turns its flower head as the sun moves across the sky. Can a sunflower see? If you touch the leaves of a plant called the sensitive plant, they will…
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