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Cement and concrete
Secure a small bag of Portland cement. Have the pupils mix it with water and put it in tin can covers, paper cups, or small pasteboard boxes unless it hardens. Study its appearance and its properties. Break a piece of cement and study it. Mix the dry cement with about twice as much sand or gravel. This will form concrete. After adding water and mixing thoroughly place it in moulds. Permit these to arden various days. Again study the appearance and the characteristics of these samples.
Discuss about the Soil Fauna The soil fauna inhabiting the soil are active partners of the soil flora in the decomposition of plant tissues. When dead leaves fall on moist so
CAN YOU EXPLAIN THE FILTRATION METHOD OF PURIFICATION OF WATER
PREPARATION OF A LIST OF MISSINGISURPLUSI NON FUNCTIONAL ITEMS After the second activity you will enter into Activity 3 i.e. verification of the stock leading to preparat
How water can be decomposed You will require a six-volt storage battery or accumulator or a battery of six dry cells for this interesting experiment. Take away the insulation f
disadvantages of protozoa
kidney ,thyoroid gland
The angle of insolation on the Earth's surface is most direct at which latitude: At 0 o latitude
a patient diagnosed with HIV. Predict how HIV will impact his total leukocyte count
Explain Transverse colon and Descending colon Transverse colon: This is a loop of colon which extends transversely across the abdominal cavity in front of the duodenum and th
Use of natural resources: you studied about various natural resources such as land, water, soil, minerals etc. You know that these resources are limited and precious. Therefore
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