Latest science puzzles and quizzes

Live Science daily sudoku (Hard, 17-27 clues)

Live Science daily sudoku (Easy, 36-45 clues)

Live Science daily sudoku (Medium, 28-35 clues)

Chain Word: Can you crack our science word of the day puzzle?

Live Science word search #1

Can you put this 'bleeding' lagoon back together?

Live Science crossword puzzle #46: Largest desert on Earth — 9 down

Can you put Ghana's explosive 'lake of souls' back together?

Live Science crossword puzzle #45: The tallest waterfall on Earth — 10 across

Can you put these vibrant 'potash ponds' back together?

Live Science crossword puzzle #44: Name of the first cloned animal created by humans — 12 down

Live Science daily sudoku (Hard, 17-27 clues)

Live Science daily sudoku (Easy, 36-45 clues)

Can you piece together this hurricane and 'sunglint' combo?

Roman emperor quiz: Test your knowledge on the rulers of the ancient empire

Crocodile quiz: Test your knowledge on the prehistoric predators

Human evolution quiz: What do you know about Homo sapiens?

Animal quiz: Test yourself on these fun animal trivia questions

Ancient Egypt quiz: Test your smarts about pyramids, hieroglyphs and King Tut

Cat quiz: Can you get a purr-fect score?

Conspiracy theory quiz: Test your knowledge of unfounded beliefs, from flat Earth to lizard people

Neanderthal quiz: How much do you know about our closest relatives?

Solar system quiz: How well do you know our cosmic neighborhood?

Evolution quiz: Can you naturally select the correct answers?

US national parks quiz

Can you name all 63 national parks in the United States?

Equator quiz

Can you name the 13 countries that sit on Earth's central line?

Constellations quiz

Can you name all the animals, objects and mythological figures hiding in the night sky?

Moon landing quiz

How quickly can you name all 12 Apollo astronauts that walked on the moon?

US volcanoes quiz

How many of the 160 named volcanoes in the U.S. and territories do you know? If you live in Alaska you have a big advantage.

Periodic table of elements quiz

How many elements on the periodic table can you name in 10 minutes?

Live Science daily sudoku (Hard, 17-27 clues)

Live Science daily sudoku (Easy, 36-45 clues)

Live Science daily sudoku (Medium, 28-35 clues)

Chain Word: Can you crack our science word of the day puzzle?

Pregnancy quiz: Can you deliver on the science of growing babies?

Weapons of the world quiz: Can you identify these historical objects of war?

Earth quiz: What do you know about our planet's most amazing features?

Artemis II quiz: Is your knowledge of NASA's historic moon mission out of this world?

Octopus quiz: Are you a sucker for cephalopod science?

Computing quiz: Can you match these ancient devices to their pictures?

First Americans quiz: How much do you know about the first people to reach the Americas?

Human origins quiz: How well do you know the story of humanity?

Diagnostic dilemma quiz: Can you guess the diagnosis in these strange medical cases?

Primates Quiz: What do you know about our closest relatives?

Yellowstone quiz: How much do you know about the first national park?

T. rex quiz: How much do you really know about the king of the dinosaurs?

Archaeology Fragments Quiz: Can you work out what these mysterious artifacts are?

Gold and gems quiz: What do you know about sparkly treasures made by nature?

Fruits and vegetables quiz: Do you know where do pumpkins, broccoli and watermelons come from?

Human skeleton quiz: What do you know about the bones in your body?

Heart quiz: What do you know about the body's hardest-working muscle?

Tutankhamun quiz: How much do you know about the famous boy king from ancient Egypt?

Ötzi quiz: What do you know about the Iceman mummy who was murdered 5,300 years ago in the Alps?

Sports records quiz: How much do you know about the greatest athletic feats of all time?

Roman Britain quiz: What do you know about the Empire's conquest of the British Isles?

Spider quiz: Test your web of knowledge

Mesopotamia quiz: Test your knowledge about the ancient civilizations of the Fertile Crescent

Celtic quiz: Test your knowledge about these fierce tribes once described by Julius Caesar

Bird quiz: How much do you know about our feathered friends?

Cat quiz: Can you get a purr-fect score?

Ancient Maya quiz: What do you know about the civilization that built pyramids across Mesoamerica?

Big cats quiz: Can you get the lion's share of these questions right?

Pompeii quiz: How much do you know about the Roman town destroyed by Mount Vesuvius?

Stone Age quiz: What do you know about the Paleolithic, Mesolithic and Neolithic?

Viking quiz: How much do you know about these seaborne raiders, traders and explorers?

Science of sleep quiz: How much do you know about sleep and dreams?

Snake quiz: How much do you know about the slithering reptiles?

Brain quiz: Test your knowledge of the most complex organ in the body

Terracotta Army quiz: What do you know about the 'warriors' in the 2,200-year-old tomb of China's 1st emperor?

Extraterrestrials quiz: Are you an alien expert, or has your brain been abducted?

Albert Einstein quiz: What do you know about the life of the famous theoretical physicist?

Pi quiz: How much do you know about this irrational number?

Elephant quiz: Test your smarts on the world's largest land animal

Mummy quiz: Can you unwrap these ancient Egyptian mysteries?

Human spaceflight quiz: How well do you know our journey into space?

Sun quiz: How well do you know our home star?

Stonehenge quiz: What do you know about the ancient monument?

Animal quiz: Test yourself on these fun animal trivia questions

Milky Way quiz: How well do you know our home galaxy?

Mars quiz: Is your knowledge of the Red Planet out of this world?

Human evolution quiz: What do you know about Homo sapiens?

Mariana Trench quiz: How deep is your knowledge?

Neanderthal quiz: How much do you know about our closest relatives?

Alexander the Great quiz: How well do you know the famous king and conqueror from the ancient world?

Last ice age quiz: How much do you know about Earth's frosty past?

Roman emperor quiz: Test your knowledge on the rulers of the ancient empire

What's inside Earth quiz: Test your knowledge of our planet's hidden layers

James Webb Space Telescope quiz: How well do you know the world's most powerful telescope?

What do you know about Jesus Christ, the man? Test your knowledge of biblical archaeology

What do you know about psychology's most infamous experiments? Test your knowledge in this science quiz

Archaeology news 2024 quiz

Robotics news 2024 quiz

Space news 2024 quiz

Tech news 2024 quiz

Case report 2024 quiz

Planet earth news 2024 quiz

Health news 2024 quiz

Conspiracy theory quiz: Test your knowledge of unfounded beliefs, from flat Earth to lizard people

Weirdest animals 2024 quiz

Moon quiz: What do you know about our nearest celestial neighbor?

Solar system quiz: How well do you know our cosmic neighborhood?

Antarctica quiz: Test your knowledge on Earth's frozen continent

Orca quiz: Will you sink or swim?

Ancient Egypt quiz: Test your smarts about pyramids, hieroglyphs and King Tut

Shark quiz: How much do you know about these iconic ocean superstars?

Black hole quiz: How supermassive is your knowledge of the universe?

Mammoth quiz

Evolution quiz: Can you naturally select the correct answers?

Charles Darwin quiz: Test your knowledge on the 'father of evolution'

Crocodile quiz: Test your knowledge on the prehistoric predators

Science news quiz: October 12, 2024

Live Science crossword puzzle #46: Largest desert on Earth — 9 down

Live Science crossword puzzle #45: The tallest waterfall on Earth — 10 across

Live Science crossword puzzle #44: Name of the first cloned animal created by humans — 12 down

Live Science crossword puzzle #43: Founder and first ruler of the Mongol Empire — 8 across

Live Science crossword puzzle #42: First American to orbit Earth — 9 across

Live Science crossword puzzle #41: Cosmic object that consumes everything near itself, including light — 9 across

Live Science crossword puzzle #40: Closest planet to the sun — 11 across

Live Science crossword puzzle #39: God of war from Ancient Greek mythology — 2 down

Live Science crossword puzzle #38: Largest non-polar desert in the world — 10 across

Live Science crossword puzzle #37: The 7th planet from the sun — 2 down

Live Science crossword puzzle #36: America's national bird — 11 across

Live Science crossword puzzle #35: Hardy 'micro-animal' that can survive in many extreme environments — 8 down

Live Science crossword puzzle #34: Famous space telescope launched in 1990 — 5 across

Live Science crossword puzzle #33: The 'E' in E =mc^2 — 2 down

Live Science crossword puzzle #32: Largest ocean on Earth — 8 across

Live Science crossword puzzle #31: First person to walk on the moon — 11 across

Live Science crossword puzzle #30: Brightest star in the night sky — 5 down

Live Science crossword puzzle #29: The 'middle' period of the dinosaurs — 13 across

Live Science crossword puzzle #28: Largest desert in Asia — 6 across

Live Science crossword puzzle #27: The explosion that created the universe — 5 down

Live Science crossword puzzle #26: Nothing can travel faster than this — 12 across

Live Science crossword puzzle #25: Ancient hominid species famous for their 'upright' posture — 11 across

Live Science's Christmas crossword 2025

Live Science crossword puzzle #24: Elemental particle associated with light — 11 down

Live Science crossword puzzle #23: Distance around the edge of a circle — 6 down

Live Science crossword puzzle #22: Subatomic particle with a positive charge — 13 across

Live Science crossword puzzle #21: NASA rover that landed on Mars in 2012 — 16 across

Live Science crossword puzzle #20: Largest contiguous land empire in history — 3 down

Live Science crossword puzzle #19: Tallest mountain in Africa — 12 across

Live Science crossword puzzle #18: First human-made satellite in space — 11 across

Live Science crossword puzzle #17: Multiple realities stacked on top of one another — 5 down

Live Science crossword puzzle #16: Famous female Australopithecus skeleton — 5 down

Live Science crossword puzzle #15: Explosive death of a star — 11 down

Live Science crossword puzzle #14: Fast dinosaur with a killer toe claw — 14 across

Live Science crossword puzzle #13: Biggest country on Earth (by land area) — 7 down

Live Science crossword puzzle #12: The heart of an atom — 6 down

Live Science crossword puzzle #11: Giant cloud at the edge of the solar system — 7 across

Live Science crossword puzzle #10: Tallest volcano on Earth — 10 down

Live Science crossword puzzle #9: A 'royal' snake that wears a hood — 14 across

Live Science crossword puzzle #8: Lowest possible temperature in the universe — 3 down

Live Science crossword puzzle #7: NASA mission that redirected an asteroid — 8 across

Live Science crossword puzzle #6: Planet with a 'Great Red Spot' — 6 down

Live Science crossword puzzle #5: Substance with a pH value less than 7 — 2 down

Live Science crossword puzzle #4: The building blocks of DNA — 14 across

Live Science crossword puzzle #3: Mathematical term for a whole number — 5 down

Live Science crossword puzzle #2: Pigment in plants where photosynthesis occurs — 13 across

Live Science crossword puzzle #1: Largest organ in the human body — 9 across

Live Science word search #1

How well do you know parts of the brain? Try this word search

Can you put this 'bleeding' lagoon back together?

Can you put Ghana's explosive 'lake of souls' back together?

Can you put these vibrant 'potash ponds' back together?

Can you piece together this hurricane and 'sunglint' combo?

Can you put this vanishing "emoji" lake back together?

Can you put this "painted" river back together?

Can you reassemble this glowing ring of plankton?

Can you put this glacier and lake back together?

Can you put reassemble this 'vivid green' reservoir bloom?

Can you put these Saharan rocky rings back together?

Can you sort out this giant sediment plume in Florida?

Can you reassemble these colorful 'mini lakes' from Africa?

Can you put this giant desert 'Y' back together?

Can you unscramble this trio of rivers in Guyana?