Answer: - Gel: Think Jell-O - liquid trapped in a solid.- Paste: Like toothpaste - thicker and stickier than a gel.- Suspension: Like mud - solid particles settle to the bottom.- Emulsion: Like milk - tiny droplets of one liquid in another.- Foam: Like whipped cream - lots of tiny air bubbles.- Aerosol: Like smoke - tiny particles floating in air. Important: A solution (like vinegar) is NOT a colloid because the particles are too small to see.