Teaching overview

Learning points

  • Fossils are the preserved remains of once-living organisms from a very long time ago.
  • Scientists who hunt for fossils are called paleontologists.
  • Paleontologists have studied fossils from all kinds of life, including dinosaurs, insects, fish, trees, shells – and even bacteria.

Curriculum keywords

  • Fossil
  • Organism
  • Dinosaur
  • Paleontologists

5 things you didn't know

What are fossils?

1. Fossils are the remains of animals and plants, found in rock or mud. They give us important clues about organisms that lived a long time ago, such as dinosaurs!

Trilobites

2. Trilobites were prehistoric sea creatures related to modern-day insects and crabs. Scientists studying their fossils have discovered that there were more than 20,000 species of trilobites, from less than a millimeter in size to more than 50cm across.

Biggest dinosaur… so far

3. In 2017, scientists uncovered the bones of the biggest dinosaur ever found. Named Patagotitan mayorum, the giant creature was longer than three buses. Scientists think it might have weighed more than 10 elephants!

Fossilized bacteria

4. The oldest fossils found so far – of ancient bacteria – date back an astonishing 3.5 billion years! The Earth itself is around 4.5 billion years old.

Fossilized poop

5. Fossil scientists, known as paleontologists, find out what dinosaurs ate by examining coprolites – the scientific word for fossilized poop!

Spark a discussion

  • Where would be some good places to look for fossils?
  • What are the names of some of the most interesting dinosaurs? What makes them so interesting?
  • Why did dinosaurs become extinct?

Twig Science: A Complete Pre-K–8 Program for the NGSS

Immersive Investigations with High-Quality Multimedia

  • Investigating, designing, building, and understanding phenomena
  • Hands-on, digital, video, and print investigations
  • Synchronous/asynchronous distance learning