Common-Core/ Grade 5
Science MCQ Based On Changes of state and heating cooling
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Common-Core Grade 5 - 5 Changes of state and heating cooling
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On heating the particles in solid starts to separate from each other
The phase changes from gas to liquid to form tiny droplets.
The particles in a solid are always vibrating, but they cannot move past each other.
When water is heated, it evaporates.
Heating a liquid increases its thermal energy and on further heating, the liquid gets enough thermal energy to change its state from liquid to gas.
Everything is made of matter around us
Thermal energy is the energy an object has because of the movement of the molecules and heat can be transfered from one object to another.
Cooling a liquid decreases the thermal energy and on further cooling liquid starts to loose its thermal energy and changes its state from liquid to solid.
In all three states, the particles are constantly bouncing off each other.
Heat energy is also called thermal energy.
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