This colossal resource is a must-have for young scientists ages 9 and up. Newly updated and revised with more than 2,100 entries that cover all branches of science from astronomy to zoology.
Why do some plants blossom only during the day? How do certain birds know when and where to migrate? Seymour Simon explains the workings of human and animal biological clocks.
Whether or not you believe in ghosts, you’ll be spellbound by these nine true tales from the spirit world.
Which are the most dangerous snakes, where do they live, what do they eat, and how do they behave?
Most ants don’t look dangerous but certain species can be lethal.
Discover nine bizarre-but-true incidents which remain unsolved to this day.
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