Common Household Gels:

* Hair gel: A styling product that holds hair in place.

* Shower gel: A liquid soap that cleanses the body.

* Hand sanitizer: A gel that kills germs on hands.

* Jelly: A sweet gel made from fruit juice, sugar, and pectin.

Other Examples:

* Silica gel: A desiccant used to absorb moisture.

* Agar: A gel extracted from seaweed used in food and microbiology.

* Gelatin: A protein gel used in food and medicine.

* Polyacrylamide gel: A gel used in electrophoresis to separate molecules.

Characteristics of a Gel:

* Solid-like: Gels maintain their shape but can also flow.

* Viscoelastic: They exhibit both solid-like and liquid-like properties.

* Colloid: Gels are composed of a liquid dispersed throughout a solid network.

Let me know if you'd like more specific examples of gels used in a particular field!