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