Physical and Chemical Change workbook class 7
Q3 .Name the following : a. The product formed when magnesium burns in oxygen. Answer. Magnesium oxide (MgO) is the product formed when magnesium burns in oxygen. The table which…
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Q3 .Name the following : a. The product formed when magnesium burns in oxygen. Answer. Magnesium oxide (MgO) is the product formed when magnesium burns in oxygen. The table which…
Q5.An elevator descends into a mine shaft at 5 meters per minute. What will be its position after one hour? Solution. 1. Determine the descent rate of the elevator:…
1. Choose the correct option. a. During heavy exercise we get cramps in the legs due to the accumulation of _______ Ethyl alcohol. ii carbon dioxide iii. water iv. lactic…
1. What were the social, economic, and political conditions in Russia before 1905? Socially, Russia had a rigid class structure with a large peasantry suffering under feudal-like conditions. Economically, the…
Q2. Answer the following questions in 30-40 words a. Why was the grandmother in tears when the narrator returned from a wedding? Answer. The grandmother was overwhelmed with a mix…
Q2. Answer the Following Questions in 30-40 Words (i) Who is the intended audience of this poem? The intended audience of the poem is children and young readers. The playful…
Q2. Answer the following questions in 30-40 words a. Why is Hughie described as ‘ineffectual’? Answer. Hughie is described as ineffectual because he was a young man with good looks…
Q4. Answer the following question in one sentence. What is the SI unit of mass? Answer. The SI unit of mass is the kilogram (kg). Give one example of oscillatory…
1. Find my match! Question a. Column ‘A’Column ‘B’1. Lotusa. Flower and leaves attract insects2. Aloeb. Haustorial roots for absoption of food3. Cuscutac. Adapted to live in deserts4. Venus fly…
Choose the correct option. Temperature is measured in: Calorie ii. erg. iii. joule. iv degree Celsius. Answer: iv. Degree Celsius Which of the following is true for sea breeze?…