What would happen to sand and water if the surroundings cooled down?

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I did an experiment where I had two containers, one full of sand ajd the other full of water. I placed them under a heat lamp for twenty minutes. What would happen if the surroundings cooled down?

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.

 

[donpat]

The sand and the water would cool down due to heat transfer from the sand or water to the surroundings.