Watch the video and find out when the first dinosaur was discovered. Don't worry, you do not need to understand every word of the video.
Dinosaurs are the longest and heaviest creatures that have ever lived on the earth. In the exercise below, try to match the adjectives with their superlatives.
What's the rule? Try to find out how superlatives are formed.
Type in the superlatives of the following adjectives. For example: The superlative of "long" is "longest".