National Level Science Talent Search Examination Prep - 4 Sep 2014

1. Which of the following is used for removing air bubbles from glass during its manufacture?
[A]Soda ash
[B]Arsenous oxide
[C]Feldspar
[D]Potassium carbonate


2. The scientific method is a process for experimentation that is used to explore observations and answer questions. What is the first step in completing the scientific method?
[A]Research
[B]Problem
[C]Hypothesis
[D]Project experimentation


3. How many controls can you have during an experiment?
[A]As many as you like
[B]Two
[C]One
[D]Four


4. Centrioles, the little cylindrical objects within a cell, are represented by which number?
[A]Eight
[B]Four
[C]Five
[D]Six


5. Rare gases are generally chemically inert because they _______________________________.
[A]Have stable electronic configuration
[B]Have low ionization energy
[C]Are monostomic
[D]Have a high electron affinity