1. Fat: a type of organic carbon compound which contains carbon, hydrogen and oxygen elements

2. Similatities of saturated fats and unsaturated fats

• organic compounds containing carbon, hydrogen and oxygen
• do not dissolve in water
• important source of fattty acids in the body

3. Differences of saturated fats and unsaturated fats

4. Effects of eating food containing excessive fats on health

• gallstones and jaundice
• cholesterol deposited in the inner wall of arteries and atherosclerosis