Classic Crosswords Classic Science Hard — Set 4
🔬 Science Crossword #1
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Across
- 2. A word related to science
- 5. Slow-moving river of ice
- 7. Center of an atom or cell
- 9. Diffusion of water through a membrane
- 10. Smallest discrete unit of energy
Down
- 1. Pure substance on periodic table
- 3. Wearing away of land by water or wind
- 4. One body blocking another in space
- 6. Mixture producing intense heat
- 8. Positively charged particle
Show answers
- 2 Across: A word related to science (12)SPECIFICALLY
- 5 Across: Slow-moving river of ice (7)GLACIER
- 7 Across: Center of an atom or cell (7)NUCLEUS
- 9 Across: Diffusion of water through a membrane (7)OSMOSIS
- 10 Across: Smallest discrete unit of energy (7)QUANTUM
- 1 Down: Pure substance on periodic table (7)ELEMENT
- 3 Down: Wearing away of land by water or wind (7)EROSION
- 4 Down: One body blocking another in space (7)ECLIPSE
- 6 Down: Mixture producing intense heat (7)THERMIT
- 8 Down: Positively charged particle (6)PROTON
🔬 Science Crossword #2
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Across
- 2. A word related to science
- 6. Slow-moving river of ice
- 8. A word related to science
- 9. Smallest discrete unit of energy
- 10. Diffusion of water through a membrane
Down
- 1. Substance providing immunity
- 3. Biological catalyst for reactions
- 4. A word related to science
- 5. Pure substance on periodic table
- 7. One body blocking another in space
Show answers
- 2 Across: A word related to science (11)KINESTHETIC
- 6 Across: Slow-moving river of ice (7)GLACIER
- 8 Across: A word related to science (12)SPECIFICALLY
- 9 Across: Smallest discrete unit of energy (7)QUANTUM
- 10 Across: Diffusion of water through a membrane (7)OSMOSIS
- 1 Down: Substance providing immunity (7)VACCINE
- 3 Down: Biological catalyst for reactions (6)ENZYME
- 4 Down: A word related to science (8)BUOYANCY
- 5 Down: Pure substance on periodic table (7)ELEMENT
- 7 Down: One body blocking another in space (7)ECLIPSE
🔬 Science Crossword #3
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Across
- 2. Wearing away of land by water or wind
- 5. A word related to science
- 7. Biological catalyst for reactions
- 10. A word related to science
- 11. Solid with ordered atomic structure
Down
- 1. Large molecule essential for life
- 3. A word related to science
- 4. Positively charged particle
- 6. Pure substance on periodic table
- 8. Group of similar living organisms
- 9. Fourth state of matter
Show answers
- 2 Across: Wearing away of land by water or wind (7)EROSION
- 5 Across: A word related to science (8)THEROPOD
- 7 Across: Biological catalyst for reactions (6)ENZYME
- 10 Across: A word related to science (12)GENERATIONAL
- 11 Across: Solid with ordered atomic structure (7)CRYSTAL
- 1 Down: Large molecule essential for life (7)PROTEIN
- 3 Down: A word related to science (11)KINESTHETIC
- 4 Down: Positively charged particle (6)PROTON
- 6 Down: Pure substance on periodic table (7)ELEMENT
- 8 Down: Group of similar living organisms (7)SPECIES
- 9 Down: Fourth state of matter (6)PLASMA
🔬 Science Crossword #4
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Across
- 1. A word related to science
- 3. Diffusion of water through a membrane
- 4. Force attracting objects to Earth
- 7. Substance providing immunity
- 9. Pure substance on periodic table
- 10. Preserved remains of ancient life
- 11. Uncharged particle in nucleus
Down
- 1. Wearing away of land by water or wind
- 2. A word related to science
- 5. Slow-moving river of ice
- 6. Center of an atom or cell
- 8. Positively charged particle
Show answers
- 1 Across: A word related to science (12)EXPERIMENTAL
- 3 Across: Diffusion of water through a membrane (7)OSMOSIS
- 4 Across: Force attracting objects to Earth (7)GRAVITY
- 7 Across: Substance providing immunity (7)VACCINE
- 9 Across: Pure substance on periodic table (7)ELEMENT
- 10 Across: Preserved remains of ancient life (6)FOSSIL
- 11 Across: Uncharged particle in nucleus (7)NEUTRON
- 1 Down: Wearing away of land by water or wind (7)EROSION
- 2 Down: A word related to science (15)THERIZINOSAURUS
- 5 Down: Slow-moving river of ice (7)GLACIER
- 6 Down: Center of an atom or cell (7)NUCLEUS
- 8 Down: Positively charged particle (6)PROTON
🔬 Science Crossword #5
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Across
- 2. Uncharged particle in nucleus
- 5. Naturally occurring inorganic solid
- 7. Preserved remains of ancient life
- 8. Large molecule essential for life
- 10. A word related to science
Down
- 1. A word related to science
- 3. Wearing away of land by water or wind
- 4. Diffusion of water through a membrane
- 6. Smallest discrete unit of energy
- 8. Fourth state of matter
- 9. One body blocking another in space
Show answers
- 2 Across: Uncharged particle in nucleus (7)NEUTRON
- 5 Across: Naturally occurring inorganic solid (7)MINERAL
- 7 Across: Preserved remains of ancient life (6)FOSSIL
- 8 Across: Large molecule essential for life (7)PROTEIN
- 10 Across: A word related to science (13)METAMORPHOSIS
- 1 Down: A word related to science (10)CRETACEOUS
- 3 Down: Wearing away of land by water or wind (7)EROSION
- 4 Down: Diffusion of water through a membrane (7)OSMOSIS
- 6 Down: Smallest discrete unit of energy (7)QUANTUM
- 8 Down: Fourth state of matter (6)PLASMA
- 9 Down: One body blocking another in space (7)ECLIPSE
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?
Our library includes dozens of classic crossword puzzles spanning topics like general knowledge, geography, history, and sports. New puzzles are added regularly so you always have fresh challenges to print and solve.
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.