Across
- 4. An element is a pure substance made of only one type of atom
- 6. Nuclear fusion is the process where two lightweight atoms (usually hydrogen) smash together at extreme speeds to form one heavier atom (like helium)
- 7. The process by which stars create new elements by smashing smaller atomic nuclei together in their cores
- 10. Atoms serve as the fundamental constituents for all matter in existence.. Everything in the cosmos—from your own anatomy to the atmosphere and everyday items—is composed of atoms.
- 11. (H) Hydrogen is the most basic and lightweight element found in nature, made up of a single proton and electron.
Down
- 1. (He) Helium is a lightweight, non-reactive element found throughout the cosmos, existing as a colorless and odorless gas with an atomic number of two.
- 2. Is the glowing cloud of debris and shockwaves left behind after a massive star explodes
- 3. A supernova is the colossal explosion of a star
- 5. A massive, glowing cloud of gas (mostly hydrogen and helium) and dust in outer space
- 8. Maintaining a constant state, resilient against rapid fluctuations or shifts.
- 9. (Fe) Iron represents a strong, magnetic element known for its silvery-gray luster. Within scientific contexts, this metal is officially designated by the symbol Fe.