The matter of the block displaced the water causing the water to rise
The liquid rises higher when a object is placed inside of it is because the mass of the object takes up space inside the liquid, which pushes the liquid in a direction that has space available.
F-block
why does liquid rise in medicine dropper when we release the bulb of the dropper
No, a liquid will typically rise when it is hotter than the surrounding liquid due to thermal expansion. This is because the hotter liquid becomes less dense than the cooler liquid, causing it to rise to the top.
An ice block melts when left out in the open because it absorbs heat from the surrounding environment, causing its temperature to rise above freezing point. As a result, the ice block changes from a solid state to a liquid state, resulting in melting.
Sink or float... on what? - The general rule is that an object will float if it has less density than the fluid (gas or liquid) in which it is placed.
bubbles rise to the surface of a heated liquid as it changes to gas because they are less dense than the liquid.
Musicians.
an object will float on a denser liquid
When a thermometer is placed into something cold, the liquid inside contracts and decreases in volume. This causes the liquid level to decrease, indicating a lower temperature on the scale of the thermometer.
When a liquid is placed in a closed container, molecules with sufficient energy can escape from the liquid and turn into gas. This process is called evaporation.
If you had a block placed on you by someone with more authority then you, you should probably leave it alone.