7 class

In this laboratory work you will learn how to make the pH indicator yourself and apply it Long-term plan section Subsections of the standard curriculum Learning objectives Chemical reactions                  Natural acids and alkalis. Indicators. Laboratory experiment No. 7 “Study of acidity and alkalinity of the medium of solutions”. 7.3.4.1 be aware that the properties “acidity” and “soapiness” may be signs of some natural acids and alkalis; 7.3.4.2 know chemical indicators–methyl orange, litmus, phenolphthalein and their color change in various media; 7.3.4.3 be able to determine acids and alkalis using a universal indicator based on the pH scale;

In this laboratory work you will learn about the combustion process Long-term plan section Subsections of the standard curriculum Learning objectives Air. Combustion reaction   Air. The composition of the air. Laboratory experiment No. 6 “Candle Combustion”   7.3.1.1 know the composition of the air; 7.3.1.2 know that combustion process consumes oxygen, which is part of the air; 7.3.1.3 understand the importance of protecting atmospheric air from pollution

In this laboratory work, you will learn about the cooling process and how to plot this process using the example of water Long-term plan section Subsections of the standard curriculum Learning objectives Changes in the state of substances Cooling process.   Laboratory experiment No. 4 “Study of the cooling process” 7.1.1.5 study the cooling process, construct a cooling curve and analyze it, explain your observations according to the kinetic theory of particles

In this laboratory you will learn how to plot the heating curve for water. Long-term plan section Subsections of the standard curriculum Learning objectives Changes in the state of substances Cooling process.   The heating process. Laboratory experiment No. 5 “Study of the boiling process of water” 7.1.1.6 Study the boiling process of water, construct a heating curve and analyze it, and explain your observations, according to the kinetic theory of particles

In this laboratory work you will learn how to identify the signs of chemical reactions Long-term plan section Subsections of the standard curriculum Learning objectives Changes in the state of substances Physical and chemical phenomena. Laboratory experiment No. 3 “Study of signs of chemical phenomena” 7.1.1.3 distinguish between physical and chemical phenomena