Part I: Stellar Crossword. d ASE Directions: Fill out the crossword puzzle using the clues provided below. ENT OF Across Down 1 The element forms when two hydrogen isotopes fuse 2 The element from space that is pulled by gravity to turn into a protostar 4 A device used to speed up the protons to overcome the repulsion between the protons and the target atomic nuclei; Particle 5 The formation of the capture of free electrons by the cations in a plasma 7 A one-dimensional point where all matters and density are concentrated explains the continuous expansion of the universe 6 Atoms of the same atomic number but of different atomic mass 8 The number of protons in an atom Atomic 9 Refers to the elements with proton number greater than 92 10 The formation of new nuclei in the early stages of the development of the universe HAS

Part I: Stellar Crossword. d ASE Directions: Fill out the crossword puzzle using the clues provided below. ENT OF Across Down 1 The element forms when two hydrogen isotopes fuse 2 The element from space that is pulled by gravity to turn into a protostar 4 A device used to speed up the protons to overcome the repulsion between the protons and the target atomic nuclei; Particle 5 The formation of the capture of free electrons by the cations in a plasma 7 A one-dimensional point where all matters and density are concentrated explains the continuous expansion of the universe 6 Atoms of the same atomic number but of different atomic mass 8 The number of protons in an atom Atomic 9 Refers to the elements with proton number greater than 92 10 The formation of new nuclei in the early stages of the development of the universe HAS