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