Comparative properties of metals and non-metals. Give three examples of each.

Define valency? What is the valency of the element with atomic number 8? What is the compound format by this element with hydrogen?

Explain the underground stems.

How the disease are transmitted from one person to the other person?

With the help of Microsoft Photostory how will you create a video?

What must be the temperature in Fahrenheit, so that it will be twice its value in Celsius?

Explain the construction and working of a dry cell.

A very hot glass on putting in cold water cracks. What does this change indicate?

Compare the plant cell and the animal cell and complete the illustration given below.
 

Which kingdom has saprophytic, parasitic and symbiotic nutrition. Why?

Write short notes on constellations.

List the advantages and disadvantages of synthetic fibres.

Make labeled diagram of a candle flame.

What are the major steps involved in this wool factory.