Physical and chemical changes

Periodic table of the elements, in pictures

By Keith Enevoldsen

Click here to visit his web

SpaceX: Falcon Heavy - Full Launch

Fungi reproduction

Yeast (unicellular)

Mushrooms (multicellular)

Monerans reproduction

Bacteria fission

Protist reproduction

Amoeba

Algae

February, 11th

The 11th of February we'll celebrate the Day of Women and Girls in Science. For more information about women scientists, clic on the image below:

Tissues

All living things are made up of cells. In Multicellular organisms, cells get toghether in different types: muscle cells, nerve cells, bone cells, blood  cells, etc. They make tissue:

BONE TISSUE

NERVE TISSUE

MUSCLE TISSUE

PLANT TISSUE

SKIN TISSUE

Organs are made of tissue. For example:

• muscle tissue is used to make the abdominal muscles, the biceps, the heart, the iris, etc.
• Nerve tissue is used to make the brain, the spinal cord, etc.

Review: cell structure

Puns!

Unit2 3 The respiratory system

3. The locomotor system

3.1. Skeleton

• 3.1.1. Head: skull (cranium, maxilla and mandible)
• 3.1.2. Torso: clavicle, scapula, sternum, ribs, vertebral column
• 3.1.3. Limbs: arms (humerus, radius, ulna, phalanges...) and legs (femur, tibia, patella, fibula, phalanges...)

Label as many bones as you can

 

3.2. Muscular system

• 3.2.1. Head: frontal muscles, facial muscles
• 3.2.2. Torso: trapezius, pectoral, dorsal, abdomina.
• 3.2.3. Limbs: arms (deltoid, biceps, triceps) and legs (gluteus, quadriceps, biceps femoris, gastrocnemius)

 Label as many muscles as you can

Doubts about pronunciation? Look up in Google translator:

2. The five senes

Our five senses receive information from the world. They are important for interaction.

2.1. Sight

• Light enters our eye through the cornea and the pupil.
• The iris controls the amount of light. If there is a lot of light, it becomes small.
• The lens focuses the light.
• The image is proyected on the retina. It is connected to the optic nerve.
• The optic nerve sends the information to the brain.

2.2. Hearing

• Sound waves enter the ear through the auditory canal and the eardrum vibrates.
• The vibration moves the three small bones. They transmit this vibration to the cochlea.
• The cochlea transforms the sound into electrical signals that travel to the brain through the auditory nerve.

2.3. Smell and taste

2.3.1. Smell

• The air enters the nose through the nostrils.
• Nerve receptors send the information to the brain.

2.3.2. Taste

• When we eat, receptor on our tongue (called "buds") detect the different tastes. 
• This information is sent to the brain through different nerves.

2.4. Touch

• The dermis contains nerves that detect sensations: temperature, pain, texture, etc. This information is sent to the brain.

The main structrures are called organelles.

Parts of a cell:

-        Nucleus : it controls the cell. It contains the DNA(AND)

-        Cytoplasm: it´s like a jelly liquid that fills the inside of a cell. It holds the organelles.

-        Vacuole: it has water and minerals inside

-        Cell membrane: it´s the outside wall of the cell

-        Mitochondrion: It produces the energy of the cell.

And also in plants:

-Chlorosplast: it makes the photosynthesis

-Cell wall: it is the first outside wall of the cell

cell parts

cell song

cells