Puzzle Detail
Classic Crosswords Classic Science Super Expert — Set 5
🔬 Science Crossword #1
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Across
- 2. Wearing away of land by water or wind
- 8. Group of similar living organisms
- 10. Uncharged particle in nucleus
- 11. Fourth state of matter
- 12. Biological catalyst for reactions
Down
- 1. Diffusion of water through a membrane
- 3. Slow-moving river of ice
- 4. Center of an atom or cell
- 5. Pure substance on periodic table
- 6. Preserved remains of ancient life
- 7. Solid with ordered atomic structure
- 9. Positively charged particle
Show answers
- 2 Across: Wearing away of land by water or wind (7)EROSION
- 8 Across: Group of similar living organisms (7)SPECIES
- 10 Across: Uncharged particle in nucleus (7)NEUTRON
- 11 Across: Fourth state of matter (6)PLASMA
- 12 Across: Biological catalyst for reactions (6)ENZYME
- 1 Down: Diffusion of water through a membrane (7)OSMOSIS
- 3 Down: Slow-moving river of ice (7)GLACIER
- 4 Down: Center of an atom or cell (7)NUCLEUS
- 5 Down: Pure substance on periodic table (7)ELEMENT
- 6 Down: Preserved remains of ancient life (6)FOSSIL
- 7 Down: Solid with ordered atomic structure (7)CRYSTAL
- 9 Down: Positively charged particle (6)PROTON
🔬 Science Crossword #2
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Across
- 2. One body blocking another in space
- 3. Biological catalyst for reactions
- 5. Naturally occurring inorganic solid
- 6. Mixture producing intense heat
- 9. Solid with ordered atomic structure
- 10. Preserved remains of ancient life
Down
- 1. Substance providing immunity
- 2. Pure substance on periodic table
- 4. Large molecule essential for life
- 7. Device for controlled nuclear reactions
- 8. Force attracting objects to Earth
Show answers
- 2 Across: One body blocking another in space (7)ECLIPSE
- 3 Across: Biological catalyst for reactions (6)ENZYME
- 5 Across: Naturally occurring inorganic solid (7)MINERAL
- 6 Across: Mixture producing intense heat (7)THERMIT
- 9 Across: Solid with ordered atomic structure (7)CRYSTAL
- 10 Across: Preserved remains of ancient life (6)FOSSIL
- 1 Down: Substance providing immunity (7)VACCINE
- 2 Down: Pure substance on periodic table (7)ELEMENT
- 4 Down: Large molecule essential for life (7)PROTEIN
- 7 Down: Device for controlled nuclear reactions (7)REACTOR
- 8 Down: Force attracting objects to Earth (7)GRAVITY
🔬 Science Crossword #3
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Across
- 1. Preserved remains of ancient life
- 5. Biological catalyst for reactions
- 6. Positively charged particle
- 8. Naturally occurring inorganic solid
- 9. Pure substance on periodic table
Down
- 2. Diffusion of water through a membrane
- 3. Device for controlled nuclear reactions
- 4. Large molecule essential for life
- 6. Fourth state of matter
- 7. Uncharged particle in nucleus
Show answers
- 1 Across: Preserved remains of ancient life (6)FOSSIL
- 5 Across: Biological catalyst for reactions (6)ENZYME
- 6 Across: Positively charged particle (6)PROTON
- 8 Across: Naturally occurring inorganic solid (7)MINERAL
- 9 Across: Pure substance on periodic table (7)ELEMENT
- 2 Down: Diffusion of water through a membrane (7)OSMOSIS
- 3 Down: Device for controlled nuclear reactions (7)REACTOR
- 4 Down: Large molecule essential for life (7)PROTEIN
- 6 Down: Fourth state of matter (6)PLASMA
- 7 Down: Uncharged particle in nucleus (7)NEUTRON
🔬 Science Crossword #4
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Across
- 2. Wearing away of land by water or wind
- 4. Large molecule essential for life
- 5. Diffusion of water through a membrane
- 9. Biological catalyst for reactions
- 10. Pure substance on periodic table
- 11. Preserved remains of ancient life
Down
- 1. Uncharged particle in nucleus
- 3. Group of similar living organisms
- 6. Naturally occurring inorganic solid
- 7. Mixture producing intense heat
- 8. Device for controlled nuclear reactions
Show answers
- 2 Across: Wearing away of land by water or wind (7)EROSION
- 4 Across: Large molecule essential for life (7)PROTEIN
- 5 Across: Diffusion of water through a membrane (7)OSMOSIS
- 9 Across: Biological catalyst for reactions (6)ENZYME
- 10 Across: Pure substance on periodic table (7)ELEMENT
- 11 Across: Preserved remains of ancient life (6)FOSSIL
- 1 Down: Uncharged particle in nucleus (7)NEUTRON
- 3 Down: Group of similar living organisms (7)SPECIES
- 6 Down: Naturally occurring inorganic solid (7)MINERAL
- 7 Down: Mixture producing intense heat (7)THERMIT
- 8 Down: Device for controlled nuclear reactions (7)REACTOR
🔬 Science Crossword #5
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Across
- 3. Group of similar living organisms
- 4. Positively charged particle
- 7. Pure substance on periodic table
- 9. Preserved remains of ancient life
- 10. Fourth state of matter
- 11. Diffusion of water through a membrane
- 12. Wearing away of land by water or wind
Down
- 1. Uncharged particle in nucleus
- 2. Force attracting objects to Earth
- 5. Center of an atom or cell
- 6. Smallest discrete unit of energy
- 8. One body blocking another in space
Show answers
- 3 Across: Group of similar living organisms (7)SPECIES
- 4 Across: Positively charged particle (6)PROTON
- 7 Across: Pure substance on periodic table (7)ELEMENT
- 9 Across: Preserved remains of ancient life (6)FOSSIL
- 10 Across: Fourth state of matter (6)PLASMA
- 11 Across: Diffusion of water through a membrane (7)OSMOSIS
- 12 Across: Wearing away of land by water or wind (7)EROSION
- 1 Down: Uncharged particle in nucleus (7)NEUTRON
- 2 Down: Force attracting objects to Earth (7)GRAVITY
- 5 Down: Center of an atom or cell (7)NUCLEUS
- 6 Down: Smallest discrete unit of energy (7)QUANTUM
- 8 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.
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What is the difference between classic and quick crosswords?
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