6º Summary for birds, mammals and reptiles

                                                                Friday 27th October 2017
REPTILES

• They are oviparous.
• They breathe with lungs.
• They have got tail (except snakes) and 4 legs with toes and claws.
• Their legs are on the sides of the trunk.
• They´ve got a thick and scaly skin.
• Some examples: snake, crocodile, lizards and turtles.

BIRDS

• They have got wings and hollow bones.
• They have got small heads and good sight.
• They haven´t got teeth but they have got beak.
• Their bodies are covered by feathers.

MAMMALS

• Many mammals have got tail, four extremities and their bodies are covered by fur (dogs, horses, cats, lions...).
• Some of them, have got fins (dolphin) or wings (bats).
• They breathe with lungs.
• Most of them are viviparous.

ACTIVITIES:

1. Reptiles are oviparous. What does this mean?
2. Which is the odd one?
           tail             lungs              exoskeleton
           claws         eggs               vertebrate



3. Write three characteristics of birds.
4. Name 5 mammals.

6º Summary for fish and amphibians

                                                               Friday, 20th October 2017

FISH

Characteristics:

• They live in the water.
• They have their bodies covered by scales.
• They are oviparous.
• They have got fins to move.
• They extract oxygen from the water by gills.

Types of fish:

• Bony fish: with bones.
• Cartilaginous fish: without bones, they have cartilage.

AMPHIBIANS

Characteristics:

• They live in land but they need water to get wet their skin.
• They have got gills when they are young, but later they use lungs.
• They are carnivores with a long tongue.
• They are oviparous.

Types of amphibians:

• Anuras: without tails (frogs and toads).
• Urodelas: with tails (salamanders).

4º LOS SERES VIVOS EN SU MEDIO (TEMA 2)

Hola chicos y chicas (y familias) aquí os dejo el siguiente tema: los seres vivos en su medios. Es un tema genial y muy entretenido. Espero que os guste y os sirva muchísimo. No olvidéis ayudar a otros compañeros y compañeras, plantear dudas, sugerir vídeos interesantes...

6º LOS ANIMALES (TEMA 2)

Hola chicos y chicas, aquí os dejo el siguiente tema de ciencias naturales: los animales. Como siempre os invito a que participéis de manera activa en el blog con aportaciones, comentarios, sugerencias, ayuda al resto... Espero que os guste y sobre todo, os sirva. Un saludo.

6º LIVING BEINGS (2ª PARTE)

TYPES OF LIVING BEINGS

Depending on the number of cells and their complexity, we can find: 

• Unicellular living beings. They are made up of ONE cell.
• Multicellular living beings. They are made up of MANY cells.

THE FIVE KINGDOMS OF LIVING BEINGS

1. Animals: many cells and very complex (mammals, fish, reptile...).
2. Plants: many cells and very complex (trees, bushes and grass).
3. Monera: this kingdom contains bacteria. They´re unicellular and haven´t got nucleus. We need a microscope to see bacteria. They´re simple and small but very powerful (live in extreme conditions).
4. Protoctista: this kingdom contains protozoa and algae. They can be unicellular and multicellular. 
1. Protozoa: unicellular, heterotrophic and with nucleus.
2. Algae: unicellular and multicellular. The performs the photosynthesis to obtain nutrients (autotrophic). They produce oxygen and absorb carbon dioxide.
5. Fungi: they cannot make their food like plants, they are heterotrophic. There are unicellular and multicellular fungi. Some fungi are microscopic (yeast) and another ones are bigger (mushrooms).