Earth and the Universe Crossword Puzzle

QUESTIONS LIST:

• sedimentary rock : a rock formed from layers of sediment.
• asteroid : a large rocky object orbiting the sun, smaller than a planet.
• star : a huge ball of hot glowing gas that gives off light.
• igneous rock : a rock formed when molten material cools and solidifies.
• fossil fuels : fuels formed from ancient plants and animals.
• orbit : the circular or elliptical path one object takes as it moves around another.
• deforestation : cutting down forests, often due to human activity.
• greenhouse gases : harmful gases like carbon dioxide that trap heat in the atmosphere.
• gravity : the force that pulls objects toward each other.
• global warming : the warming of earth caused by certain gases trapping heat.
• meteor : a chunk of rock or metal from space that burns up in earth’s atmosphere.
• carbon dioxide : a gas released when fossil fuels burn.
• mass : the amount of matter in an object.
• emissions : gases released into the air, often from cars or factories.
• solar system : a group of planets, moons, and other objects orbiting a star.
• comet : a long‑period icy object that orbits the sun and forms a glowing tail.
• eclipse : when the moon blocks sunlight to earth.
• day : the time taken for one full rotation of the earth on its axis.
• seasons : the tilt of earth’s axis causes the four -------
• metamorphic rock : a rock formed when heat and pressure change an existing rock.