ðū Meet the Animal Groups
How can we classify animals?
Scientists group animals by looking at their features.
Vertebrates
Animals with a backbone.
Invertebrates
Animals without a backbone.
ðĪ Think!
What do you notice about these animals?
ð What Is a Classification Key?
A classification key is a tool that helps us identify and group living things.
It uses a series of simple questions.
VERTEBRATE
INVERTEBRATE
ð Which question would help us sort animals?
ðĶī Vertebrates
What is a vertebrate?
A vertebrate is an animal that has a backbone.
Vertebrates have an internal skeleton with a backbone.
The 5 Main Groups
ð Tap the animals that have backbones.
ð The 5 Vertebrate Groups
Can you match the animal to its group?
Fish
Live mainly in water.
Amphibians
Live on land and in water.
Reptiles
Have dry, scaly skin.
Birds
Have feathers.
Mammals
Have hair or fur and feed milk to their young.
ð§Đ Match the animals
ð Invertebrates
What is an invertebrate?
An invertebrate is an animal that does not have a backbone.
Examples
ð Which animals are invertebrates?
ð Types of Invertebrates
Invertebrates can look very different!
Insects
- 6 legs
- 3 main body parts
- Example: butterfly
Arachnids
- 8 legs
- Example: spider
Molluscs
- Soft bodies
- Some have shells
- Example: snail
Worms
- Long, soft bodies
- Example: earthworm
ð Think!
Does an insect have a backbone?
ðģ Follow the Classification Key
Let's use a simple key!
VERTEBRATE
INVERTEBRATE
ð§Đ Try it!
ð§Đ Can You Follow the Key?
Animal: ðļ Frog
Does it have a backbone?
What group of vertebrates does it belong to?
ð Let's Try Another!
Animal: ðĶ Butterfly
Does it have a backbone?
Look at its features:
Which group?
ð§ Your Turn: Use the Key
Classify each animal!
1. ð Snake
Does it have a backbone?
Then choose its group:
2. ð·ïļ Spider
Does it have a backbone?
Choose:
3. ðĶ Parrot
Does it have a backbone?
Choose:
ðĶ Build Your Own Classification Key
Can you make a key?
You have:
Start with:
ðĄ Add another question
Think about feathers, fur, shells, legs, or wings.
ðŊ Classification Challenge
Secret Animal ðĩïļ
I am an animal...
ðŠķ I have feathers.
ðŠ― I have wings.
ðĨ I lay eggs.
Who am I?
⥠Quick Fire!
Vertebrate or Invertebrate?
ð What Have We Learned?
I can...
ð Final Question
Why do scientists use classification keys?