Question Text
Question 1 : <p><span>A fresh apple when cut turns brown after some time because of a :</span></p>
Question 2 :
Melting of butter is a physical change. <span>State whether the statement is true or false</span>
Question 3 :
When a nail is added to acidic copper sulphate solution, the colour changes from _______.<br/>
Question 4 :
Reactions that take place under the influence of electricity are called:
Question 8 :
What's common among motion of the planets around the sun, blinking of traffic lights and motion of blades of a fan rotating at uniform speed?
Question 10 :
Halley comet revolves around the sun once in every 76 years. This is a:
Question 11 : <div>Write 'true' or 'false' for the given statement. Rewrite the false statement correctly: </div><div>Decomposition of leaves is a fast change.</div>
Question 12 :
Changes in which new substance are formed are called __________ changes.
Question 13 : <div>Write 'true' or 'false' for the given statement. Rewrite the false statement correctly: <br></div><div>Deforestation is a man-made change.<br></div><br>
Question 14 :
Which of the following is a true term regarding chemical reactions?`<br>
Question 30 : <p class="MsoNormal"><span>Halley's comet revolves around the sun </span><span>once in every 76 Years. This is a:</span><span></span></p>
