Space
What is the term for the path one celestial body takes around another?
An orbit
What is the name of the fluid connective tissue that transports nutrients and oxygen throughout the body?
Blood
What ancient invention, believed to originate in Mesopotamia, is considered fundamental to transportation and machinery?
The wheel
What term describes animals that eat both plants and meat?
Omnivores
What is the only letter of the alphabet that does not appear anywhere on the periodic table of elements?
J
What is the name of the layer of the Sun that we can see, which emits most of its visible light?
The photosphere
What is the term for the body's process of maintaining a stable internal environment despite external changes?
Homeostasis
What invention, patented by Samuel Morse, allowed long-distance communication using electrical signals?
The telegraph
What term describes animals that maintain a constant internal body temperature?
Endothermic (warm-blooded)
What common metal is the only one that is liquid at room temperature?
Mercury
What galaxy classification describes the shape of the Milky Way?
Spiral Galaxy (Barred Spiral)
What is the name of the protein that carries oxygen in red blood cells?
Hemoglobin
What invention by Willis Carrier in 1902 made modern climate control possible?
Air conditioning
What is the name for a group of lions?
A pride
What element, discovered in the sun before it was found on Earth, is named after the Greek word for "Sun"?
Helium
What term describes a meteor that survives its trip through the atmosphere and lands on Earth's surface?
A meteorite
What part of the brain is primarily responsible for regulating hunger, thirst, and body temperature?
The hypothalamus
What invention by Percy Spencer in 1945 resulted from a melted candy bar in his pocket?
The microwave oven
What is the name for the symbiotic relationship where both species benefit, such as clownfish and sea anemones?
Mutualism
What planet in our solar system has a day that is longer than its year?
Venus
What is the name of the theoretical point of infinite density believed to exist at the center of a black hole?
A singularity
What is the name of the fatty substance that insulates nerve fibers to help electrical impulses travel faster?
Myelin
What Serbian-American inventor is credited with major contributions to the development of alternating current (AC) electricity?
Nikola Tesla
What is the name of the only mammal known to lay eggs instead of giving live birth, native to Australia?
The platypus
What is the term for the sound barrier-breaking phenomenon that produces a loud boom when an object exceeds the speed of sound?
A sonic boom