Movie day out class VII

 

Testing food samples for carbohydrates, proteins and fats

 

The food sample was tested for carbohydrates, proteins, and fats. The appearance of a blue-black colour with iodine confirmed the presence of starch. A reddish color in milk using milans reagent indicated the presence of proteins. Ethanol emulsion test confirmed the presence of fats.

The experiment successfully identified the major nutrients present in the given food sample using standard food tests. The colour changes and observations confirmed the presence or absence of carbohydrates, proteins, and fats.

Class VIII Activity on building the structure of atom

 

Learners of Class VIII performed activity of making model of structure of atom. Learners have been given five elements on the board. They have to calculate the number of protons, neutrons and electrons in each element with the help of atomic number and mass number. Then they took three different coloured beads or pulses representing electron, proton, neutron. Using compass and pencil they made shells in their activity file. Then they pasted correct counted no. of sub atomic particles. The activity makes them clear about the structure of atom.