First Children Encyclopedia

A T. re x had tiny serrations on its teeth. Its bite would have torn into a victim’s flesh. means “King of the tyrant lizards”.T ...

Giganotosaurus means “giant southern reptile”, and this dinosaur was big; in fact it may have been larger than T. rex. However, ...

Argentinosaurus Let’s get it! A huge sauropod, Argentinosaurus, lived alongside Giganotosaurus. It’s thought this monster may ha ...

A feathered dinosaur? Some dinosaur fossils have been found with traces of a feather- like covering, and it’s thought that Veloc ...

This skeleton has been mounted to show Deinonychus leaping towards a victim, claws ready. Jump and grab Velociraptor and its rel ...

There may have been no marine dinosaurs, but a frightening variety of toothed giant reptiles ruled the seas while the dinosaurs ...

Anything it could catch, including pterosaurs who flew too close to the water’s surface. Some people think the “monster” in Lock ...

How was it made? Can you name some of the things that fossilize? 206 Age of the dinosaurs Fossils may form when animal or plant ...

Fossils include bones, teeth, footprints, and skin impressions. Plants also fossilize. How was it made? Two million years ago Th ...

How big were the animals that survived the extinction? Age of the dinosaurs Sixty-five million years ago the dinosaurs died out, ...

No land animal heavier than a large dog survived. What happened? 209 The rock that created the Mexican crater was 10 km (6 miles ...

You may think that reptiles are closely related to dinosaurs, but dinosaurs may have more in common with birds! Living dinosaurs ...

It was small: about the size of a pigeon.^211 Pieces of a puzzle More and more “dino-birds” are being discovered, and each disco ...

212 Science is the search for truth and knowledge. It holds the key to understanding life, the Universe... and almost everything ...

213 What is science? Zoology. Materials science Our Universe is filled with atoms and elements, molecules, mixtures, and compoun ...

214 Science begins with problems. The world’s great scientists were all thinkers who wanted to solve life’s problems. This need ...

215 Advances in science Benjamin Franklin. Inventions Inventions and discoveries have changed the course of our history. Paper ( ...

216 Who invented frozen food? Science and technology Albert Einstein (1879–1955) German-born physicist Albert Einstein’s famous ...

Advances in science Clarence Birdseye, in 1924. Modern inventions Imagine the world without these fantastic inventions: Alan Tur ...

218 Being a scientist How much bigger do things look through a microscope? Science and technology Scientists study the world aro ...