Challenge your science knowledge across topics like biology, chemistry, and physics with these engaging questions. This easy quiz covers everything from atoms and waves to famous theories and natural phenomena.
What can most insects see that humans can't: x-rays, ultraviolet light, or gamma rays?
Explanation: The correct answer is ultraviolet light. Most insects can see ultraviolet light, which humans cannot, helping them to navigate and find food. X-rays and gamma rays are much more energetic and not visible to insects or humans. Infrared can be detected by some animals but was not the focus here.
Which cells are part of your immune system and help fight infection: R cells, S cells, or T cells?
Explanation: T cells are a type of white blood cell essential for the immune response. R and S cells are not recognized immune cell types, and P cells is not a standard term related to immunity.
In chemistry, what is a substance made up of only one type of atom called: compound, molecule, or element?
Explanation: An element consists of only one type of atom. Compounds and molecules are made from more than one type of atom, and a mixture contains multiple substances.
Which scientist proposed the theory of special relativity: Isaac Newton, Albert Einstein, or Steven Hawkin?
Explanation: Albert Einstein developed the theory of special relativity. Isaac Newton is known for classical mechanics, Steven Hawkin was noted for black holes and cosmology, and Marie Curie discovered radioactivity.
What is the branch of physics that deals with the behavior of objects at very low temperatures: progenics, quantum mechanics, or thermodynamics?
Explanation: Cryogenics studies the effects of very low temperatures. Progenics is not a recognized field; quantum mechanics deals with extremely small particles, while thermodynamics addresses heat and energy broadly.
What is the most abundant gas in Earth's atmosphere: oxygen, nitrogen, or carbon dioxide?
Explanation: Nitrogen makes up the largest portion of Earth's atmosphere. Oxygen is the second most abundant, carbon dioxide is present in much smaller amounts, and argon, while present, is not as abundant as nitrogen.
Approximately what percent of an iceberg shows above water: 10%, 20%, or 25%?
Explanation: About 10% of an iceberg floats above water due to the density difference between ice and liquid water. 20% and 25% are overestimates, while 50% is not correct for icebergs.
What is the process by which a seed becomes a plant: fertilization, pollination, or germination?
Explanation: Germination is when a seed starts to grow into a plant. Fertilization and pollination occur before seed formation, and photosynthesis is how a plant produces food after germination.
Which subatomic particle is negatively charged: proton, neutron, or electron?
Explanation: An electron carries a negative charge. Protons are positively charged, neutrons have no charge, and a positron is a positively charged counterpart to the electron.
Which hormone is known as the happy hormone: dopamine, cortisol, or adrenaline?
Explanation: Dopamine is often called the happy hormone for its link to reward and pleasure. Cortisol is the stress hormone, adrenaline is associated with the fight-or-flight response, and insulin regulates blood sugar.