Fósiles fascinantes: ¿que son los fósiles?

The video tutorial explores the differences between dinosaur and snake footprints, highlighting that while both are made by reptiles, they differ significantly in age and formation. It explains that fossilized dinosaur footprints are millions of years old, whereas snake footprints are recent and not fossils. The video further delves into the concept of fossils, describing them as remains or impressions of ancient organisms, some of which are billions of years old. Various forms of fossils are discussed, including impressions and remains, and the video concludes with a closer look at different classes of fossils.

What is the main difference between the dinosaur and snake footprints mentioned?

• The time period in which they were formed

• The size of the footprints

• The type of reptiles that made them

• The location where they were found

What is a key characteristic of fossils?

• They are always found in Arizona

• They are remains from the recent past

• They are vestiges from thousands or millions of years ago

• They are only impressions of ancient bacteria

Which of the following is NOT a form that fossils can take?

• Modern animal footprints

• Fossilized remains of organisms

• Other unique formations

• Impressions of ancient beings

How old can some fossils, like ancient bacteria, be?

• Billions of years old

• Millions of years old

• Only a few years old

• Thousands of years old

What does the video suggest about the different classes of fossils?

• They vary in form and formation

• They are all impressions of dinosaurs

• They are only found in specific locations

• They are all the same