Here are some liquids that are lighter than water (meaning they float on water):

* Petroleum-based liquids: Gasoline, kerosene, diesel fuel, oil

* Alcohols: Ethanol, methanol, isopropyl alcohol

* Organic solvents: Acetone, ether, toluene

* Vegetable oils: Olive oil, sunflower oil, canola oil

* Animal fats: Lard, butter

Important note: Some of these liquids are flammable and should be handled with extreme care.