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