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