### substance | mixture | colloid | emulsion:

Fish emulsion
* good and inexpensive fertilizer high in nitrogen and phosphorous.
* good, inexpensive fertilizer high in nitrogen and phosphorous.
* is high in nitrogen and source of several trace elements
  - notably low in calcium, while fishbone meal is quite high
* makes a great fertilizer, about once a month during the summer months.
* partially decomposed blend of finely pulverized fish.
* works well for fertilizing broccoli plants.

### substance | mixture | colloid:

Gel
* Most gels contain alcohol
  - simple sugars, as well as electrolytes and often caffeine
* Most gels have antibacterial properties
* Some gels absorb moisture.
* Some gels are produced by aloes
  - toxic and corrosive and can even present waste disposal problems
  - cause headaches
* Some gels consist of crude fiber
* Some gels contain formaldehyde
  - heat
  - oil
  - fill retinas
  - have water
  - help burns
  - kill bacteria
  - reduce muscle damage
* are also flexible and can be formed into sleeves for fluorescent tubes
  - oddly lifelike substances somewhere between a solid and a liquid
  - plastic strips that attach via bulldog style clips to the light's barndoors
  - water-based substances thickened without oil or fat
* can give drugs a timely release
  - vary in size
* come in a wide variety of colors and are made from different strengths of transparent plastic.
* give hair shine and control.
  - applications
* simply becomes liquid as it rises in temperature.
* spotting occurs when a partially gelled coating is applied to the substrate.
* tend to heave up during electrophoresis which gives the wells a scalloped appearance.
* use for purposes
  - silica as an abrasive to help polish teeth
* used in nucleic acid separation are matrices of agarose or polyacrylamide.
* work well for oily skin or when working and sweating.

### substance | mixture | colloid | gel:

Clear gel
* Some clear gels fill retinas.
* is applied to the legs to help conduct sound waves.
* midified food starch that thickens cool liquids.

Soft gel
* are the easiest method to take lecithin.
* cause more oxygen to reach the content, which makes the oil more prone to rancidity.
* keeps cold in freezer or refrigerator.

Hydrogel
* are gels
  - usually clear or translucent in color and vary in viscosity or thickness
* find high volume use as industrial, consumer, and environmental absorbents.
* protect and insulate the wound while providing a mosit healing environment.
* swell extensively without changing their gelatinous structure.

### substance | mixture | colloid | hydrogel:

Amorphous hydrogel
* Many amorphous hydrogels contain propylene glycol, an agent which can result in allergic reaction.
* are soft formless gels that become less viscous as they absorb fluid.

Silica gel
* Some silica gels absorb moisture
  - have distribution
* are examples.

Soil colloid
* are the smallest particles in soils.
* can be in either a flocculated or dispersed state.
* fit the definition of an acid when calcium is replaced by hydrogen.

Sol
* Most soles protect feet.
* Some soles are part of feet
  - have eyes
* can change into viscosity quickly if they are thixotropic.
* come in a variety of thicknesses and materials.
* inhabit shallow sandy waters, where they lie buried by day, emerging at night to feed.
+ Sol (colloid): Materials
  * Sols can change into viscosity quickly if they are thixotropic. Examples include quicksands and paint, both of which become more fluid under pressure.