0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why do things shrink when it is cold?
Because most things, such as metals, expand when hot. So cold does the opposite.
Why balloons expand when placed in hot water?
The hot water heats the air inside the balloon - making it expand.
Do wires expand?
Yes as though during the hot days the wires due to the hot heat that make it expand.
Why do object expand?
Objects contract or expand depending on the temperature. Cold makes things contract, heat makes things expand. However, there are some exceptions. For example, water expands when it turns to ice. This is due to the process of crystallization. The reason that objects expand and contract is found at the atomic level. When an object is warm, its molecules move faster and spread out, making that object expand. However, when an object is cold, the atoms slow down and move back together, making the object contract.
Why do flames rise even though gravity pulls things downwards?
Hot gases expand and therefore are less dense than cold gases, and therefore hot gas has buoyancy and will rise, much as air bubbles float to the surface in water.
Why do things shrink when it is cold?
Because most things, such as metals, expand when hot. So cold does the opposite.
Why does a car need a overflow jug for the radiator?
In a radiator, the fluids get really hot, when things get hot they expand and then they have to go somewhere, the fluid goes into an overflow.
Why balloons expand when placed in hot water?
The hot water heats the air inside the balloon - making it expand.
Why do hot atoms move colder than warm atoms?
Because heat makes things expand, and cold makes things contract.("'\(o.o)/"')
Why do ping pong balls expand in hot water?
Because heat makes plastic expand in hot water.
Do wires expand?
Yes as though during the hot days the wires due to the hot heat that make it expand.
What is the scientific law of expand and contrast?
Expand- Hot Contrast- Cold
Do solids expand when hot?
yes
Do substances expand when hot?
Yes.
Does gas expand on hot days?
No. a gas does not expand on a hot day because all of the chemicals compress in order to keep it the size and shape
Does hot air expand and rise?
yes
When things get bigger you say they contract converge or expand?
They expand.
