science teacher's guide - DepEd Naga City

Teacher's GuideModule 3: Elements & CompoundsActivity3The “Matter” on LabelsFood in itself is a sample of matter and thereby made up of eitherelements, compounds or mixtures. By law, these matter must be written infood labels. In this activity, the students will find these matter on foodlabels. They will focus on the elements and compounds that make up thefood they eat. They will be more aware of the existence of elements andcompounds around them. They will find out that these elements are some ofthe nutrients that a food provides. These nutrients are called minerals.They can find them listed in the Nutrition Facts. Moreover, these mineralsare not added as the elements themselves. Most of the time, compounds ofthat element are the ones added to manufacture the food. Being so, it is thecompound which is the one listed as the Ingredient.Aside from the knowledge the students may gain in this activity, it isalso hoped that the students acquire the habit of reading food labels. Thefood they eat has a major implication to their health and well-being. It isimperative then to be aware of what is taken in by the body. These are alllisted in a food label. Therefore, reading food labels “matter”.Teaching Tips• Ask the students to bring more food labels. The ones used in theactivity are hoped to be only supplemental.• As an assignment, the students can find product labels other thanfood such as medicine, household cleaning products, cosmetics andtolietries. They can identify elements and compounds listed on thoselabels.Grade 7 Science: MatterDiversity of Materials in the Environment 36