General Science Quiz - Physics, Chemistry & Biology

ATC stands for Air Traffic Control - the service that guides aircraft through controlled airspace and on the ground at airports to prevent collisions.

The Coast Redwood (Sequoia sempervirens) is the tallest tree species in the world, with specimens reaching over 115 meters (380 feet) in height. These trees are native to the coastal regions of California and Oregon. The Giant Sequoia (Sequoiadendron giganteum) is the largest tree by volume, while the Sitka Spruce is the third tallest conifer species. The Manna Gum is a eucalyptus species from Australia and not among the tallest trees globally.

Venkatraman Ramakrishnan, born in Tamil Nadu, India, was awarded the Nobel Prize in Chemistry in 2009 along with Thomas Steitz and Ada Yonath. They were recognized for their studies of the structure and function of the ribosome. His work on determining the atomic structure of the ribosome's subunits has been fundamental to understanding antibiotic resistance and protein synthesis.

Ascorbic acid is the chemical name for Vitamin C, an essential water-soluble vitamin that plays crucial roles in collagen synthesis, immune function, and antioxidant protection. It is commonly found in citrus fruits, berries, and vegetables. Vitamin A is retinol, Vitamin B12 is cobalamin, and Vitamin D is cholecalciferol (D3) or ergocalciferol (D2).

Aspirin's chemical name is acetylsalicylic acid (ASA). It is synthesized by acetylating salicylic acid, which is derived from willow bark. Borax is sodium borate, carbonic acid is H2CO3, and salicylic acid is the precursor compound, not aspirin itself. The acetyl group (CH3CO) is what makes it aspirin, improving its efficacy and reducing side effects compared to salicylic acid.

The adult human skeleton consists of 206 bones, which is far more than 100. Babies are born with around 270 bones that fuse together during growth, resulting in the adult count of 206 bones.

Mercury is the closest planet to the Sun, not Venus. Venus is the second planet from the Sun and is actually the hottest planet due to its thick atmosphere, but it's not the closest to the Sun.

Atomic bombs use nuclear fission, where heavy atomic nuclei (like uranium or plutonium) split into smaller nuclei, releasing enormous energy. This differs from hydrogen bombs which use nuclear fusion.

Water (H₂O) is a chemical compound made of hydrogen and oxygen atoms, not a chemical element. Elements contain only one type of atom (like oxygen or hydrogen alone), while compounds consist of two or more different elements chemically bonded.

Sharks are fish, not mammals. They have gills to breathe underwater, are cold-blooded, and do not produce milk for their young. Mammals are warm-blooded, breathe air with lungs, and nurse their young with milk.

Filtration is a separation method that works by passing a mixture through a filter medium that allows smaller particles to pass through while trapping larger particles. This technique is commonly used in water purification, coffee making, and laboratory processes.

Electrical conductors are materials that allow electric current to flow easily because they offer very low resistance to the movement of electrons. Materials like copper and aluminum are excellent conductors precisely because of their low resistance.