Endocrine system, by Mariam.

 

Circulatory system, by Rim.

 

Digestive system, by Amina, Sulayman and Mussa.

 

Link to a video

Role play about pollution

 

Link to the transcript

The layers of Earth’s atmosphere

 LINK TO A PHOTO GALLERY

Weather

 

Link to a presentation

TOPIC 3. The Earth´s atmosphere

The Earth is surrounded by an atmosphere that is a mixture of gases. Some of these gases are elements, others simple molecules, and some are compounds molecules.