Cold water is heavier than warm water

Cold water is heavier than warm water

Did you know that cold water is heavier than warm water? (the same amounts, for example, one liter) The density of water increases as the temperature decreases. Water molecules move more slowly as the temperature drops, causing them to pack closer together. As a...
In prehistoric times, there were gigantic ferns

In prehistoric times, there were gigantic ferns

Did you know that in prehistoric times there were gigantic ferns, reaching heights of up to 18 meters? During the Carboniferous period (over 300 million years ago), the warm climate provided ideal conditions for ferns to grow into giants. These ferns reached heights...
The Horseshoe Crab has blue blood

The Horseshoe Crab has blue blood

Did you know that a horseshoe crab has blue blood? A horseshoe crab is an arthropod (arthropods have their skeleton on the outside rather than internally like humans) and belongs to the group known as “swordtails.” The horseshoe crab is also called a...
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