Recall the photo of the melting ice cubes. If you put the water from the melted ice cubes back into the freezer, it will become solid again. Describe the transfer of
thermal energy as the ice cubes melt and then as they become solid again. In both
situations, describe which substances are gaining and losing energy

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explanation:

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explanation:

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.