Vertebrates and invertebrates
Home learning focus
Explore the difference between vertebrates and invertebrates.
This lesson includes:
- three videos
- four activities to develop the learning
Animals can be classified as either vertebrates or invertebrates.
Watch this film to find out what an invertebrate is.
Invertebrates are animals that don't have a backbone.
Some have soft bodies, like worms, slugs and jellyfish.
Invertebrates, like insects, spiders and crustaceans, have a hard outer casing called an exoskeleton.
This protects their body a bit like a suit of armour.
However, as they grow, animals have to shed and produce a new one as they get bigger - like a new set of clothes.
This short film looks at how animals grow new skeletons.
Watch this video to find out what a vertebrate is.
Vertebrates are animals that have a backbone inside their body.
The major groups include fish, amphibians, reptiles, birds and mammals.
There are lots of fun ways to try out your science skills:
Sort the animals
Have a go at sorting the animals into invertebrates and vertebrates.
Take the quiz.
There's more to learn
Have a look at these other resources around the BBC and the web.