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What's hidden in the woods? Look closely through three colored transparent sheets to discover hidden secrets. Start with green and nothing moves. As if by magic each sheet shows animals and plants coming to life. Watch nature's surprises emerge in front of your eyes.

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...

El libro ilustrado de Alexander von Humboldt, el héroe perdido de la ciencia y padre de la ecología. Alexander Humboldt fue un intrépido explorador y el científico más famoso de su época. Su agitada vida estuvo repleta de aventuras y descubrimientos: escaló los volcanes más altos del mundo, remó por el Orinoco y recorrió una Siberia infestada de ántrax. Capaz de percibir la naturaleza como una fuerza global interconectada, Humboldt descubrió similitudes entre distintas zonas climáticas de todo el mundo, y previó el peligro de un cambio climático provocado por el hombre. En este ...