Test your knowledge of physics, chemistry, biology, and the natural world with free quizzes — no sign-up required
Feed your curiosity with our Science & Nature quiz collection, covering physics, chemistry, biology, earth science, space, and the living world. Whether you're a science student, a nature lover, or simply someone who wants to understand how the universe works, these quizzes offer an engaging and educational challenge.
From the periodic table and laws of physics to ecosystems, animal behaviour, and the latest discoveries in astronomy, each quiz explores a different dimension of the natural world. Questions span fundamental science and specialist knowledge alike — there's always something new to learn, and it's all completely free to play.
Browse the questions below — click any answer to reveal it.
The 3 main classifications of these are active, dormant & extinct
Answer: Volcanoes
A fragrance by Christian Dior, Fahrenheit 32 gets its name from the temperature at which what happens?
Answer: Water Freezes
Where does a bee collect pollen?
Answer: On Its Legs
Blythe, California has an area for collecting these spherical crystal-filled rocks.
Answer: A geode
Polaris is commonly known as what star?
Answer: The North Star
Opera & field glasses are classified as these, a pair of telescopes mounted on a single frame
Answer: Binoculars
What is the more scientific name for quicksilver?
Answer: Mercury
In what habitat would you find zebra, kudu and lions?
Answer: Savanna
It's the theory that the universe was created in a cosmic explosion
Answer: The Big Bang Theory
The wearing away of land by wind or water is known as what?
Answer: Erosion
Its atomic number is 79 & the purest types are said to be 24-karat
Answer: Gold
In 1903, Willem Einthoven invented the "string galvanometer" to measure electrical charges here -- be still, mine
Answer: Heart
In the animal kingdom, what term is used to describe the male who is the dominant member of a group?
Answer: Alpha
What kind of diet does a deer have?
Answer: Herbivorous
What is Mars' atmosphere mostly made of?
Answer: Carbon dioxide
A blacksmith works primarily with what metal?
Answer: Iron
During the water cycle, most of the earth’s water evaporates from what large heated land mass?
Answer: The Oceans
In the classic tale “Moby Dick,” Moby Dick is what kind of whale?
Answer: Sperm Whale
An attempt to predict the weather is known as what?
Answer: Forecast
How many astronauts manned each Apollo flight?
Answer: Three
This unit of measure is equal to .47 liters; drink up!
Answer: A Pint
George Hale’s spectroheliograph made it possible to photograph this using one wavelength of light
Answer: The Sun
What type of rock has a name that comes from the Latin word for “fire”?
Answer: Igneous
Who is the only astronaut known to have given himself communion on the surface of the moon?
Answer: Buzz Aldrin
What is a group of monkeys called?
Answer: Troop
It's the only planet in the Solar System with exactly 2 moons
Answer: Mars
The first of these buildings for publicly displaying fish was opened at Regent's Park in England in 1853
Answer: Aquarium
A device some people fear will accidentally create a black hole,the Large Hadron Collider is a what?
Answer: Particle Accelerator
Who was the first person to prove that planets move in elliptical orbits?
Answer: Johannes Kepler
What name is given to the group of animals that eat meat?
Answer: Carnivores
You deserve a medal if you know that this element, symbol Ag, is No. 47 on the periodic table
Answer: Silver
A group of what birds is known as “murder”?
Answer: Crows
In the abbreviation for the medical procedure popularly known as an MRI, what does the “I” stand for?
Answer: Imaging
What is the eighth planet from the sun?
Answer: Neptune
This term for a plant or animal with a marked deficiency of pigmentation comes from the Latin for "white".
Answer: Albino
There are 360 points of contact on the body to "needle" you in this Chinese medical specialty
Answer: Acupuncture
In astronomy, what star is closest to the Earth?
Answer: The Sun
In the human body, what internal organ regulates the amount of glucose in the blood?
Answer: Pancreas
An atom is comprised of these 3 subatomic particles: electron, neutron, & _____.
Answer: Proton
What is the most common metallic ore in the Earth's crust?
Answer: Aluminium
Of genus Sequoia, the tallest living trees are these colorful Californians, some 360 feet tall
Answer: Redwoods
Burn to stop the flow of blood
Answer: Cauterize
In the military, which of these terms is slang for “kilometer”?
Answer: Klick
What is the name for a crack in a volcano from which lava escapes?
Answer: Fissure
Toxins from these single-celled organisms can cause diseases like botulism
Answer: Bacteria
Sir Alexander Fleming was one of 3 men awarded the Nobel Prize in 1945 for their work with this substance.
Answer: Penicillin
Bovine spongiform encephalopathy, first identified in Britain in 1986 is better known by what name?
Answer: Mad Cow Disease
Which types of genetic traits can skip a generation?
Answer: Recessive
What is the middle region of an insect called?
Answer: Thorax
What kind of energy is associated with motion?
Answer: Kinetic