Answer
Fats are solid at room temperature and have single bonds (saturated) between fatty acid carbon atoms (saturated). Oils are liquid at room temperature and have double bonds between some fatty acid carbon atoms (unsaturated).
Work Step by Step
Fats are solid at room temperature and have single bonds (saturated) between fatty acid carbon atoms (saturated). Oils are liquid at room temperature and have double bonds between some fatty acid carbon atoms (unsaturated).