Which of the following is the process that occurs in stars to form heavy nuclei from lighter nuclei?
thermonuclear fission
thermonuclear fusion
thermonuclear combustion
thermonuclear decay

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Air can be considered a mixture. which statement does not explain why?