Fireballs are a type of celestial phenomenon that can be seen in the night sky. Meteors, also known as shooting stars, are small pieces of rock or dust that enter the Earth's atmosphere and burn up, creating a bright streak of light. Tigers are large, powerful cats that are native to parts of Asia and Africa. POWERHOUSES are buildings or facilities that generate large amounts of energy. Fireballs, meteors, tigers, and POWERHOUSES are all related in that they are all powerful and awe-inspiring forces of nature.