Some important things about Law of Conservation of Matter for 7th graders
1. The Law of Conservation of Matter states that matter cannot be created or destroyed in a chemical reaction, it can only change forms.
2. This means that the total mass of the reactants in a chemical reaction must be equal to the total mass of the products. In other words, the amount of matter at the beginning of a reaction must be the same as the amount of matter at the end of a reaction.
3. The Law of Conservation of Matter is a fundamental principle in chemistry and is used to predict the outcome of chemical reactions.
4. This law also applies to physical changes, such as melting, freezing, and boiling. The total mass of the substances involved in these changes remains constant.
5. Understanding the Law of Conservation of Matter is important for predicting the outcomes of chemical reactions and for understanding how matter behaves in various physical and chemical processes.
6. Students can demonstrate the Law of Conservation of Matter through experiments and lab activities where they measure the mass of reactants and products before and after a reaction. This helps reinforce the concept and helps students understand the importance of measuring mass in chemical reactions.