Puzzle Detail
Classic Crosswords Science Hard — Set 1
🔬 Science Crossword #1
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Across
- 1. Fourth state of matter
- 3. A word related to science
- 4. Force attracting objects to Earth
- 5. Slow-moving river of ice
- 11. Biological catalyst for reactions
- 12. Diffusion of water through a membrane
Down
- 2. Naturally occurring inorganic solid
- 6. Solid with ordered atomic structure
- 7. Pure substance on periodic table
- 8. A word related to science
- 9. Positively charged particle
- 10. Preserved remains of ancient life
Show answers
- 1 Across: Fourth state of matter (6)PLASMA
- 3 Across: A word related to science (11)KINESTHETIC
- 4 Across: Force attracting objects to Earth (7)GRAVITY
- 5 Across: Slow-moving river of ice (7)GLACIER
- 11 Across: Biological catalyst for reactions (6)ENZYME
- 12 Across: Diffusion of water through a membrane (7)OSMOSIS
- 2 Down: Naturally occurring inorganic solid (7)MINERAL
- 6 Down: Solid with ordered atomic structure (7)CRYSTAL
- 7 Down: Pure substance on periodic table (7)ELEMENT
- 8 Down: A word related to science (8)THEROPOD
- 9 Down: Positively charged particle (6)PROTON
- 10 Down: Preserved remains of ancient life (6)FOSSIL
🔬 Science Crossword #2
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Across
- 2. A word related to science
- 6. A word related to science
- 9. Mixture producing intense heat
- 10. Wearing away of land by water or wind
Down
- 1. Substance providing immunity
- 3. Biological catalyst for reactions
- 4. A word related to science
- 5. Slow-moving river of ice
- 7. Large molecule essential for life
- 8. A word related to science
Show answers
- 2 Across: A word related to science (12)GENERATIONAL
- 6 Across: A word related to science (12)EXPERIMENTAL
- 9 Across: Mixture producing intense heat (7)THERMIT
- 10 Across: Wearing away of land by water or wind (7)EROSION
- 1 Down: Substance providing immunity (7)VACCINE
- 3 Down: Biological catalyst for reactions (6)ENZYME
- 4 Down: A word related to science (4)ATOM
- 5 Down: Slow-moving river of ice (7)GLACIER
- 7 Down: Large molecule essential for life (7)PROTEIN
- 8 Down: A word related to science (8)THEROPOD
🔬 Science Crossword #3
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Across
- 1. Pure substance on periodic table
- 3. Naturally occurring inorganic solid
- 4. Smallest discrete unit of energy
- 5. A word related to science
- 7. A word related to science
- 8. Solid with ordered atomic structure
- 9. Biological catalyst for reactions
Down
- 2. One body blocking another in space
- 3. A word related to science
- 6. Preserved remains of ancient life
Show answers
- 1 Across: Pure substance on periodic table (7)ELEMENT
- 3 Across: Naturally occurring inorganic solid (7)MINERAL
- 4 Across: Smallest discrete unit of energy (7)QUANTUM
- 5 Across: A word related to science (12)SPECIFICALLY
- 7 Across: A word related to science (11)APATOSAURUS
- 8 Across: Solid with ordered atomic structure (7)CRYSTAL
- 9 Across: Biological catalyst for reactions (6)ENZYME
- 2 Down: One body blocking another in space (7)ECLIPSE
- 3 Down: A word related to science (12)METICULOUSLY
- 6 Down: Preserved remains of ancient life (6)FOSSIL
🔬 Science Crossword #4
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Across
- 2. Diffusion of water through a membrane
- 4. Preserved remains of ancient life
- 5. A word related to science
- 7. Wearing away of land by water or wind
- 10. Group of similar living organisms
- 11. Pure substance on periodic table
- 12. Positively charged particle
- 13. Fourth state of matter
Down
- 1. A word related to science
- 3. A word related to science
- 6. Mixture producing intense heat
- 8. Center of an atom or cell
- 9. Device for controlled nuclear reactions
Show answers
- 2 Across: Diffusion of water through a membrane (7)OSMOSIS
- 4 Across: Preserved remains of ancient life (6)FOSSIL
- 5 Across: A word related to science (8)SAUROPOD
- 7 Across: Wearing away of land by water or wind (7)EROSION
- 10 Across: Group of similar living organisms (7)SPECIES
- 11 Across: Pure substance on periodic table (7)ELEMENT
- 12 Across: Positively charged particle (6)PROTON
- 13 Across: Fourth state of matter (6)PLASMA
- 1 Down: A word related to science (10)CRETACEOUS
- 3 Down: A word related to science (12)METICULOUSLY
- 6 Down: Mixture producing intense heat (7)THERMIT
- 8 Down: Center of an atom or cell (7)NUCLEUS
- 9 Down: Device for controlled nuclear reactions (7)REACTOR
🔬 Science Crossword #5
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Across
- 1. Preserved remains of ancient life
- 6. Device for controlled nuclear reactions
- 8. A word related to science
- 10. Mixture producing intense heat
- 11. Wearing away of land by water or wind
- 12. One body blocking another in space
Down
- 2. A word related to science
- 3. A word related to science
- 4. Force attracting objects to Earth
- 5. A word related to science
- 7. Biological catalyst for reactions
- 9. Positively charged particle
Show answers
- 1 Across: Preserved remains of ancient life (6)FOSSIL
- 6 Across: Device for controlled nuclear reactions (7)REACTOR
- 8 Across: A word related to science (8)THEROPOD
- 10 Across: Mixture producing intense heat (7)THERMIT
- 11 Across: Wearing away of land by water or wind (7)EROSION
- 12 Across: One body blocking another in space (7)ECLIPSE
- 2 Down: A word related to science (8)SAUROPOD
- 3 Down: A word related to science (12)EXPERIMENTAL
- 4 Down: Force attracting objects to Earth (7)GRAVITY
- 5 Down: A word related to science (12)GENERATIONAL
- 7 Down: Biological catalyst for reactions (6)ENZYME
- 9 Down: Positively charged particle (6)PROTON
Solver Notes
Enjoy our collection of classic crossword puzzles featuring traditional grid layouts and a wide range of topics. Each puzzle is free to download, print, and solve at your own pace.
What are classic crossword puzzles?
Classic crossword puzzles use a traditional symmetric grid where solvers fill in words based on numbered clues. Each puzzle features interlocking horizontal and vertical answers that share common letters, creating an engaging word challenge.
How do I solve a classic crossword puzzle?
Start with the clues you know for certain and fill in those answers first. Use the crossing letters to help you figure out harder clues. Work through the across and down clues systematically, and don't be afraid to use a pencil so you can erase.
Who are classic crosswords best suited for?
Classic crossword puzzles are ideal for adults and older students who enjoy vocabulary challenges and general knowledge trivia. They work well for solo relaxation, classroom activities, or group puzzle-solving sessions.
How many classic crossword puzzles are available?
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What is the difference between classic and quick crosswords?
Classic crossword puzzles use larger grids with more complex clues and require broader vocabulary knowledge. Quick crosswords feature smaller grids and simpler clues, making them faster to complete and more accessible for beginners.