Explore fascinating facts from biology, physics, and chemistry with this fun, beginner-friendly science quiz. Check your understanding of essential scientific concepts across several fields.
What can most insects see that humans cannot: X-rays, ultraviolet light, or gamma rays?
Explanation: Most insects can see ultraviolet light, which is invisible to humans. X-rays and gamma rays are even higher energy forms the human eye also cannot see, but insects do not detect them either. Visible light is seen by both humans and many insects.
Which cells in your immune system help fight infection: R, S, or T cells?
Explanation: T cells are important immune cells that help defend the body against infections. R cells and S cells are not types of immune cells, and while M cells exist, they are not directly involved in fighting infection.
In chemistry, what is a substance made up of only one type of atom called?
Explanation: An element is made up of only one kind of atom. Compounds and molecules consist of multiple atoms, which may be different types, while a mixture contains more than one substance physically combined.
Which scientist proposed the theory of special relativity?
Explanation: Albert Einstein is famous for proposing the theory of special relativity. Isaac Newton contributed to classical mechanics, Steven Hawkin is known for work on black holes, and Marie Curie studied radioactivity.
Which branch of physics deals with the behavior of objects at very low temperatures?
Explanation: Cryogenics is the study of matter at very low temperatures. Progenics is not a physics branch, quantum mechanics deals with particles at small scales, and thermodynamics covers energy and heat generally, not specifically low temperatures.
Which gas is most abundant in Earth's atmosphere?
Explanation: Nitrogen makes up the largest portion of Earth's atmosphere. Oxygen is the second most abundant, carbon dioxide is much less common, and hydrogen is present only in trace amounts.
Approximately what percent of an iceberg shows above water?
Explanation: Around 10% of an iceberg is visible above the water due to the density of ice versus water. The other values overstate how much is visible; most of an iceberg remains hidden beneath the surface.
What is the process by which a seed becomes a plant called?
Explanation: Germination is when a seed develops into a plant. Fertilization involves fusion of reproductive cells, pollination is the transfer of pollen, and osmosis is a type of water movement in cells.
Which subatomic particle is negatively charged?
Explanation: Electrons carry a negative charge. Protons are positive, neutrons are neutral, and photons are particles of light with no charge.
Which hormone is often called the 'happy hormone'?
Explanation: Dopamine is known as the 'happy hormone' for its role in pleasure and motivation. Cortisol is related to stress, adrenaline to the body's 'fight or flight' response, and estrogen is a reproductive hormone.