This 29-Question Science Quiz Will Make You Remember All The Science Classes You Skipped

Whether you were the top science student in high school or the one daydreaming through the classes, this 29-question quiz will test everything you thought you knew.

This science trivia covers basic science, astronomy, human biology, and physics—and we are sure you were good at at least one of these. So take a deep breath, trust what you know, and start—you never know what you might remember or even learn as you go!

Let’s see how well you’ve kept up with the facts!

Plasma globe emitting blue and pink lightning, showcasing science general knowledge.

Image credits: Pixabay

H₂O chemical formula on a gray background, representing general science knowledge.

Bored Panda

1. What is H₂O?

Oxygen

Hydrogen

Carbon dioxide

Water

2. What "O" is the atmospheric layer of Earth being destroyed by aerosols?

Oxygen

Orbit

Obsidian

Ozone

Earth rising over the lunar horizon, a depiction of general science knowledge and celestial bodies in space.

Pixabay

3. What is the name of the closest star to Earth?

North Star (Polaris)

The Sun

Sirius

Alpha Centauri

4.
From these, which planet has the most moons?

Pixabay

Neptune

Bright sun in a clouded sky, illustrating solar energy.

Pixabay

5. What type of energy is produced by the Sun?

Electric

Nuclear

Solar

Thermal

Skeleton arm model illustrating bone structure in babies vs adults in general science knowledge.

IBD Clinic

6. Is it true or false that babies have more bones than adults?

True

False

Equation E=mc² with a rocket illustration, representing general science knowledge.

Miinutephysics

7. Einstein said that E = mc². What does "m" stand for?

Matter

Mass

Movement

Magic

Green hill under a blue sky with clouds, representing natural beauty and general science knowledge.

Scott Webb

8. The hardest natural substance on Earth is:

Iron

Graphite

Diamond

Quartz

Stack of gold bars, symbol Au, used in general science knowledge contexts.

Pixabay

9. What is the chemical symbol for gold?

Go

Fe

Ag

Au

Person studying human anatomy illustration, focusing on body parts involved in insulin production, such as the pancreas.

RF._.studio _

10. Which part of the human body produces insulin?

Liver

Pancreas

Stomach

Kidneys

Sunrise over Earth, highlighting gravitational force, in space setting with stars and horizon.

Qimono

11. Which force keeps the planet orbiting around the Sun?

Magnetism

Tension

Friction

Gravity

Red blood cells in a flowing motion, illustrating general science knowledge about infection-fighting cells.

Crystal_Blair

12. When you have an infection in your body, what type of cells help in fighting it?

Red blood cells

Platelets

White blood cells

Plasma

Bees collecting nectar from a bright yellow flower, essential for honey production in general science.

Pixabay

13. What do bees collect from flowers to make honey?

Pollen

Sap

Dew

Nectar

Abstract illustration of a brain, highlighting general science knowledge concepts with neural networks and vibrant colors.

Google DeepMind

14. Is it true or false that the brain is responsible for pumping blood throughout the body?

True

False

Person shielding eyes from sunlight, which aids vitamin production, standing by green cactus backdrop.

Stephany Lorena

15. Which vitamin is produced when the skin is exposed to sunlight?

Vitamin A

Vitamin C

Vitamin B

Vitamin D

"Potassium text on yellow background, highlighting chemical knowledge."

Bored Panda

16. What is the chemical symbol for the element potassium?

Pt

Po

K

Q

Icebergs in a melting sea, illustrating effects of primary gas responsible for global warming.

Guillaume Falco

17. What is the primary gas responsible for global warming?

Carbon dioxide

Oxygen

Nitrogen

Hydrogen

Young plant with green leaves, conducting photosynthesis, in rich soil.

AS Photography

18. Which part of the plant conducts photosynthesis?

Root

Flowers

Leaves

Stem

A doctor examines brain scans, focusing on areas related to balance and coordination in general science knowledge.

Anna Shvets

19. Which part of the brain controls balance and coordination?

Medulla

Cerebrum

Cerebellum

Helium

Molecular structures illustrating electron-sharing bonds in atoms, highlighting covalent bonding in general science knowledge.

Google DeepMind

20. What type of bond is formed when two atoms share electrons?

Covalent bond

Ionic bond

Metallic bond

Hydrogen bond

Pink jellyfish with trailing tentacles in a deep blue ocean background.

Blue Ox Studio

21. A jellyfish is:

A fish

A mammal

An invertebrate

A reptile

Lush green plant leaves, illustrating the process of transpiration in general science knowledge.

Jonathan Borba

22. What is the name of the process by which plants release water vapor into the atmosphere?

Evaporation

Condensation

Precipitation

Transpiration

Orange umbrella under the sun, symbolizing protection from UV radiation, with birds flying in a clear blue sky.

Geralt

23. In physics, what does UV stand for?

Uniform Vibration

Ultra Velocity

Ultraviolet

Ultimate Vision

Butterfly perched on white blossoms, showcasing vivid wing patterns. General science knowledge on butterfly life cycle.

Eric Planet Olympus

24. What is the process by which a caterpillar turns into a butterfly?

Metamorphosis

Germination

Photosynthesis

Respiration

Purple model of negatively charged particles in atoms on hexagonal paper.

Tara Winstead

25. What are the negatively charged particles in an atom called?

Protons

Neutrons

Electrons

Ions

"Illustration of Zzz representing sleep, related to general science knowledge on animal hibernation."

Vectortradition

26. Which animal can sleep up to three years at a time?

Koala

Sloth

Frog

Snail

Molecular structure illustration, representing protons and neutrons in general science.

Google DeepMind

27. In an atom, where are the protons and neutrons located?

Electron cloud

Nucleus

Outer shell

Neutron ring

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What do you think ?

POST

Lucifer 1 day ago

The type of energy the Sun produces is nuclear. Solar energy is the radiation and the light that are a product of the nuclear fusion.

35points

nicholas nolan 1 day ago

I clicked solar just bcause I knew they were gonna eff that up.

16points

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LilliVB 1 day ago

Thank you, I came here just to say that. In the sun two atoms of hydrogen fuse together to create an atom of helium.

4points

Robert T 20 hours ago

Very badly worded question. The Sun is fuelled by nuclear fusion, but the type of radiation produced is what we call solar energy.

3points

WindySwede 1 day ago

Came here for this

2points

Noltha 7 hours ago

In fact, the photons which reach Earth, are not the same photons which were created in the nuclear processes. After scatterings and reinteractions, they have a spectrum of black body radioation, so "thermal" technically could be also correct.

0points

marcelo D. 20 hours ago

this, came to complain about this one. The sun energy is produced by nuclear fusion, it's nuclear energy.

0points

David L 1 day ago

Bees collect both nectar and pollen.

13points

Robert T 20 hours ago

It is all a trick by the plants. The plants produce nectar to attract the bees. The pollen sticks to the bees by accident (it is not actively collected by the bees). When the bee visits another plant, it fertilises it by brushing the pollen off again.

4points

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