1.why a solid expands when it is heated? 2.explain how the liquid in a thermometer changes so that it can be used to measure a temperature.

3.use particle theory to explain why solid and liquids cannot be compressed ( squashed into a smaller volume )

4. use particle theory to explain why liquids and gases can flow

QN 1

Explanation:

WHEN A SOLID IS HEATED ITS ATOMS VIBRATE FASTER ABOUT THEIR FIXED POINTS. HEAT CAUSES THE MOLECULES TO MOVE FASTER HEAT ENERGY IS CONVERTED TO KINETIC ENERGY WHICH MEANS THAT THE VOLUME OF GAS INCREASES MORE THAN THE VOLUME OF A SOLID OR LIQUID.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.