Microorganisms – Friends or Foes (Worksheet) Fill in the blanks 1. Study of Microorganisms : __________________ 2. The size of bacterium is 3.5 microns = ___________ &nbs
Coal and Petroleum (NCERT Exemplar Q & A) Petroleum Refinery Question 1: You are provided with a mixture of petroleum and water. Can you suggest a method to separate the two? Answ
Metals and Non-Metals NCERT Exemplar Answers Multiple Choice Questions Q1: Which of the following is not a metal? (a) copper (b) sulphur (c) aluminium (d) iron Q2: The substance t
Metals vs Non-Metals Physical Properties Comparison .tg {border-collapse:collapse;border-spacing:0;} .tg td{font-family:Arial- sans-serif;font-size:14px;padding:10px 5px;border-style:solid;b
SOUND Question Bank Very Short Answer Type QuestionsQ1: Define vibration. Q2: What is meant by oscillatory motion? Q3: How is sound produced? Q4: Can sound travel in vacuum? Q5: Define amplit
