### extremely rare:

Wild panda
* Most wild pandas drink fresh water
* Some wild pandas leave mothers.
* are extremely rare.
* live in the bamboo forests of central China.

### extremely slow-growing plant:

Reindeer moss
* is an extremely slow-growing plant
  - bitter, antibiotic, and edible
  - especially slow
* lichen
  - eaten by reindeer, as the name implies
* light-colored lichen that only grows to be a few centimeters tall.
* takes years to grow to a harvestable size for the reindeer to eat.

### extremely toxic:

Thallium compound
* are extremely toxic
  - quite toxic and some have been used as rat poisons
  - teratogenic
  - used in glass for infrared light
+ Thallium, Uses: Chemical elements :: Metals
  * It is used in rat poisons and insecticides. The use of thallium as a poison has been reduced or banned in many countries because these countries think that thallium might cause cancers. It is also used in infrared detectors. It has been used in some murders. Thallium compounds are used in glass for infrared light. Thallium was also used to kill skin infections, but it is too toxic to be used for that now. A superconductor that can work at higher temperatures than normal ones do uses thallium. A radioactive thallium isotope was used for nuclear scans. An alloy of thallium and mercury has a low freezing temperature and is a liquid. A very dense solution of a thallium compound was used to test minerals for specific gravity, but it is too toxic for use.

### extremely viscous:

Polymeric fluid
* are extremely viscous.
* show at the same time both viscous and elastic properties.

### extremely volatile:

Fuel vapor
* are a respiratory hazard
  - very explosive
* escape directly from automobile engines and gas tanks, especially on hot days.
* is extremely volatile
  - produced when heat from the flame radiates back to the fuel surface

Extremist group
* Extremist Groups try to stop abortion by using force, intimidation, or through illegal activities.
* advocate the use of force or intimidation or illegal activities to stop abortion.
* are organizations that Espouse supremacist causes.

### eye irritant:

Potassium chloride
* dry granular material that can be mixed with dry N materials.
* extended-release capsules are an electrolyte replenisher.
* high-potency, synthetic source of potassium.
* human poison by ingestion.
* is an eye irritant
  - chemical compounds
  - chloride
  - crystal
  - found as a mineral
* is found in many salt substitutes
  - most foods but is significant primarily in salt substitutes
  - heated very hot until it melts
* is highly water soluble
  - water-soluble
  - inorganic compounds
  - ionic compounds
  - moderate eye irritant
  - potentially lethal if used improperly
  - produced in four major size grades
  - similar to sodium chloride, and can be used as a partial substitute for it
  - the salt of potassium after it's reacted with hydrochloric acid
  - toxic in very large amounts
* is used as a healthier alternative to table salt
  - substitute for the common salt, sodium chloride
+ Potassium chloride, Occurrence: Potassium compounds :: Chlorine compounds
  * Potassium chloride is found as a mineral. The mineral is called 'sylvite'. It is also found in sylvanite, a mixture of sodium chloride and potassium chloride
  - Safety
  * Potassium chloride is toxic in very large amounts. When injected into a vein it is much more toxic
  * It is used to make potassium metal. Potassium chloride is heated very hot until it melts. Sodium metal is reacted with it. The sodium metal melts and boils to make sodium gas. The sodium gas reacts with the potassium chloride to make potassium gas and sodium chloride. It can be electrolyzed in a water solution to make potassium hydroxide. It is used in food processing

### eye-catching color:

Hot pink
* can show up in a summer silk or a winter wool melton.
* is an eye-catching color
  - usually very transparent, with a strong metallic texture