Question

1)Write uses of calorimeter.
2)Explain the action of dropper. 3) Scale available on graph paper and how to use graph paper to measure irregular surface area. 4) Give four examples of conductors and insulators. 5) What is soft and hard water? Give two examples of simple and compound leaves. 6) Give two examples of fleshy and juicy fruits. 7) Give any four examples of medicinal plants. 8) Give any two examples of xerophytic and hydrophytic plants.

Answer 1

1) A calorimeter is an object used for calorimetry or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity. Differential scanning calorimeters, isothermal microcalorimeters, titration calorimeters and accelerated rate calorimeters are among the most common types.

2)When you squeeze the rubber top on the dropper you squeeze the air out. Then when you put the tip into the liquid and stop squeezing the top, the low pressure inside sucks up the liquid. In fact, it is the higher pressure outside the dropper, in the liquid, that pushes the liquid up into the dropper.

3)Count only the squares which are half or more than half

4) Conductors- gold, silver, aluminium, copper
     Insulators- Rubber, Glass, Wood, Air

5) IDK

6) Mango, Plump, Cherry

7) Tulsi, neem, alkaloids,  polyphenols

8) xerophytic- cactus, pineapple plant
hydrophytic plants- Lotus, lily