Vertebrates and Invertebrates

Exploring Science 7 Textbook

7D- Classified

Done by: Mahima De Alwis

Lesson Objectives:

L. Obj: To know what are vertebrates and invertebrates.

L.Out: Able to identify vertebrates and invertebrates, and differentiate them.

W.A.L.T: Types of Vertebrates & Invertebrates.

Starter Activity 1

Looking at these 8 living things, find the variation (differences) and similarities.

Write them all in your notebook (Individual work)

Starter Activity 2

http://www.youtube.com/watch?v=8wT5dihdt4E

Starter Activity 2

What did you learn from this video?

Definition:

Vertebrate- A vertebrate is an animal which has a spine/backbone.

Invertebrate- An Invertebrate is an animal without a spine/backbone.

Types of Vertebrates:

1) Mammals

2) Birds

3) Reptiles

4) Amphibians

5) Fish

What are mammals?

Mammals are a group of vertebrates.

They have hair or fur. They give birth to live young. They produce milk (only the females)

Dolphins, Whales, Lions, Zebras, Human, Rats, Deer, Moose etc. are all mammals.

Challenge:

Why is Dolphin not a fish, but a mammal.

What are birds?

Birds are vertebrates. They are the only animals which have feathers, They lay eggs in nest. NOT ALL BIRDS CAN FLY!

D.Y.K: Penguins are birds!

Ostrich, Hawk, Parrot, Eagle, Falcon, Canary, Dove etc. are all birds!

Challenge:

What makes bat a mammal, but not a bird?

It has feathers alright!

What are amphibians?

Amphibians are adapted to live in land, and in water.

For more information: Click this link-

http://www.youtube.com/watch?v=UdelWdbrwww

What are amphibians?

Frogs, Tadpoles, Alligators, Salamanders, Urodeles etc. are all amphibians.

What are reptiles?

Reptiles are cold-blooded vertebrates

Reptiles have dry scales

Have lungs for breathing

Alligator, Crocodiles, Turtles, Snakes, Black Mamba etc. are all reptiles!

Challenge

Why is lizard not a amphibian, but a reptile?

What are Fish?

Fish are cold-blooded

They lay eggs

Fish are entirely made of cartilage

Angelfish, Goldfish, Swordfish, Swim Bladder, Hagfish are all fishes!

Discussion

Discuss in groups:

Which group has the most vertebrates?

MAIN Types of Invertebrates

Molluscs

Arthropods

Echinoderms

What are molluscs?

Molluscs have: •Have soft body with bilateral symetry•Many are covered with one or two shell.•More are aquatic, and a few live on land

Examples of Molluscs: Slug, Snail etc.

What are Arthropods?

• Have bilateral symetry.• Their bodies are totally covered by an

articulate exoeskeleton like armour.• The exoeskeleton moults in a process

called moulting.• They have antenna and eyes, simples o

compounds( thousands of smaller simpler eyes.

• Some are acuatic others are terrestial.

Arthropods have:

What are echinoderms?

Echinoderms have: •Have five-way symetry.Have a skeleton made of hard plates often with spines.•They are covered by a thin skin.•All are marine animals.

Echinoderms Examples: Sea Urchin, Star Fish, Brittle Star etc.

In the previous slide, explaining about arthropods, The examples

of arthropods are not given. Your task is to name some

arthropods.

Let’s Check:

Examples of Arthropods:

Spider

Tarantula

Snake

Scorpion (obviously, because you must have seen the picture)

Discuss:

Are there more invertebrates than vertebrates?

Are there more vertebrates than invertebrates?

What group has the most vertebrates?

What group has the least vertebrates?

What group has the most invertebrates?

What group has the least invertebrates?

Plenary (Last Activity)

What did you learn in this lesson

• Write three more things, you will like to know more about INVERTEBRATES and VERTEBRATES

Plenary

Now go to this link and play this game-

http://sheppardsoftware.com/content/animals/kidscorner/games/animalclassgame.htm

Now please like my presentation in Slideshare, or please download it