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