Polyethyline Terephtalate

 PET

CHARACTERISTICS:

• Bright(shines)
• Complex chemical formula
• Should be recycled
• Tough

PROPERTIES:

• Flavours and olors are absorbed
• Tough
• Bright

USES:

• Water bottles
• Oil bottles
• Carpets
• Clothes

Mercury

Hg

Characteristics:

1. ·         It has a light grey color, with a mirror-like appearance
2. ·         It is very dense (13.5 g / cm³ )
3. ·         It is a liquid metal in room temperature
4. ·         It tends to evaporate

Properties:

·         Bold words

Uses:

1. ·         Instruments that measure temperature and pressure (thermometers and barometers)
2. ·         Advertising signs
3. ·         Electrical switches and batteries
4. ·         Agriculture (pesticides)
5. ·         Medicines (long time ago)

History:

1. ·         Very ancient due to it is pure in nature
2. ·         It was thought that was a magical substance
3. ·         It was used in alchemy (it was even one of the four elements in nature)

Health and Environment:

1. ·         Poisonous metal
2.      Passes through the skin →   blood stream       
3. ·         Very easily inhaled
4. ·         It is a bio accumulative metal