PRESENTATIONS OF SOLAR SYSTEM MODELS

VITAL FUNCTIONS: INTERACTION

Those tutorials may help you to understand interaction in animals and plants

PHOTOSYNTHESIS & RESPIRATION 2- NATURAL SCIENCE 2

PHOTOSYNTHESIS & RESPIRATION- NATURAL SCIENCE 2

Composition of the primitive Earth atmosphere

Composition of the present atmosphere of the Earth

EARTH ATMOSPHERE

LAYERS OF THE ATMOSPHERE

PROCARIOTIC CELL

BACTERIA CAN BE USEFUL

Bacteria can be useful to human beings in a few ways, for example:

1. Bacteria in human intestines (gut flora) help with the digestion of certain foods, mainly complex carbohydrates. Lactobacillus species convert milk protein to lactic acid in the gut.
2. They are used in the production of cheese, yogurt, and other foods 
3. They are essential for the decomposition and recycling of dead organisms
4. Fixation of nitrogen from the atmosphere into useable nitrogen in soils 
5. Many are used in the production of antibiotics and other substances as insulin, hormones...
6. Photosynthetic bacteria (Cyanobacteria) produce free oxygen
7. They synthesize vitamins such as folic acid (B9 vitamin), vitamin K and biotin (B7 vitamin)

MICROSCOPE OBSERVATION: WATER FROM A POND

SIMPLE LIVING THINGS: MICROORGANISMS

SEVEN WONDERS OF THE MICROORGANISMS
https://www.youtube.com/watch?v=XuZQUEFD52I

Monarch Butterfly Amazing Migration

https://www.youtube.com/watch?v=LawHWsIqa5s

Metamorphosis of a Monarch Butterfly

 Danaus plexippus
https://www.youtube.com/watch?v=7AUeM8MbaIk

CELL 3D-MODELS EXPOSITION IN THE LIBRARY

New Project: SEXUAL DIMORPHISM

In many species, males are really different from females. Let's have a look to same examples


¿Could you find a few more examples and give the names for the males and the females?

Vegetal and animal cells. Students Project