Classic Crosswords Classic Science Expert — Set 7
🔬 Science Crossword #1
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| 8 | 9 | |||||||||||||
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Across
- 4. Diffusion of water through a membrane
- 6. Positively charged particle
- 9. Substance providing immunity
- 10. Center of an atom or cell
- 11. One body blocking another in space
Down
- 1. Uncharged particle in nucleus
- 2. Large molecule essential for life
- 3. Biological catalyst for reactions
- 5. Group of similar living organisms
- 7. Naturally occurring inorganic solid
- 8. Slow-moving river of ice
Show answers
- 4 Across: Diffusion of water through a membrane (7)OSMOSIS
- 6 Across: Positively charged particle (6)PROTON
- 9 Across: Substance providing immunity (7)VACCINE
- 10 Across: Center of an atom or cell (7)NUCLEUS
- 11 Across: One body blocking another in space (7)ECLIPSE
- 1 Down: Uncharged particle in nucleus (7)NEUTRON
- 2 Down: Large molecule essential for life (7)PROTEIN
- 3 Down: Biological catalyst for reactions (6)ENZYME
- 5 Down: Group of similar living organisms (7)SPECIES
- 7 Down: Naturally occurring inorganic solid (7)MINERAL
- 8 Down: Slow-moving river of ice (7)GLACIER
🔬 Science Crossword #2
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| 3 | ||||||||||||||
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| 7 | ||||||||||||||
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Across
- 3. Device for controlled nuclear reactions
- 4. Group of similar living organisms
- 5. Positively charged particle
- 6. Wearing away of land by water or wind
- 7. Pure substance on periodic table
- 8. Naturally occurring inorganic solid
Down
- 1. Substance providing immunity
- 2. Preserved remains of ancient life
- 5. Large molecule essential for life
- 6. Biological catalyst for reactions
Show answers
- 3 Across: Device for controlled nuclear reactions (7)REACTOR
- 4 Across: Group of similar living organisms (7)SPECIES
- 5 Across: Positively charged particle (6)PROTON
- 6 Across: Wearing away of land by water or wind (7)EROSION
- 7 Across: Pure substance on periodic table (7)ELEMENT
- 8 Across: Naturally occurring inorganic solid (7)MINERAL
- 1 Down: Substance providing immunity (7)VACCINE
- 2 Down: Preserved remains of ancient life (6)FOSSIL
- 5 Down: Large molecule essential for life (7)PROTEIN
- 6 Down: Biological catalyst for reactions (6)ENZYME
🔬 Science Crossword #3
| 1 | ||||||||||||||
| 2 | 3 | |||||||||||||
| 4 | 5 | 6 | ||||||||||||
| 7 | ||||||||||||||
| 8 | 9 | |||||||||||||
| 10 | ||||||||||||||
Across
- 2. Uncharged particle in nucleus
- 5. Biological catalyst for reactions
- 8. Center of an atom or cell
- 9. Slow-moving river of ice
- 10. Group of similar living organisms
Down
- 1. Smallest discrete unit of energy
- 3. Substance providing immunity
- 4. Naturally occurring inorganic solid
- 6. One body blocking another in space
- 7. Positively charged particle
Show answers
- 2 Across: Uncharged particle in nucleus (7)NEUTRON
- 5 Across: Biological catalyst for reactions (6)ENZYME
- 8 Across: Center of an atom or cell (7)NUCLEUS
- 9 Across: Slow-moving river of ice (7)GLACIER
- 10 Across: Group of similar living organisms (7)SPECIES
- 1 Down: Smallest discrete unit of energy (7)QUANTUM
- 3 Down: Substance providing immunity (7)VACCINE
- 4 Down: Naturally occurring inorganic solid (7)MINERAL
- 6 Down: One body blocking another in space (7)ECLIPSE
- 7 Down: Positively charged particle (6)PROTON
🔬 Science Crossword #4
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| 2 | 3 | |||||||||||||
| 4 | 5 | |||||||||||||
| 6 | 7 | |||||||||||||
| 8 | 9 | |||||||||||||
| 10 | ||||||||||||||
Across
- 4. One body blocking another in space
- 5. Force attracting objects to Earth
- 6. Biological catalyst for reactions
- 9. Preserved remains of ancient life
- 10. Uncharged particle in nucleus
Down
- 1. Center of an atom or cell
- 2. Solid with ordered atomic structure
- 3. Naturally occurring inorganic solid
- 7. Wearing away of land by water or wind
- 8. Mixture producing intense heat
Show answers
- 4 Across: One body blocking another in space (7)ECLIPSE
- 5 Across: Force attracting objects to Earth (7)GRAVITY
- 6 Across: Biological catalyst for reactions (6)ENZYME
- 9 Across: Preserved remains of ancient life (6)FOSSIL
- 10 Across: Uncharged particle in nucleus (7)NEUTRON
- 1 Down: Center of an atom or cell (7)NUCLEUS
- 2 Down: Solid with ordered atomic structure (7)CRYSTAL
- 3 Down: Naturally occurring inorganic solid (7)MINERAL
- 7 Down: Wearing away of land by water or wind (7)EROSION
- 8 Down: Mixture producing intense heat (7)THERMIT
🔬 Science Crossword #5
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Across
- 5. Slow-moving river of ice
- 7. Biological catalyst for reactions
- 8. Preserved remains of ancient life
- 9. Diffusion of water through a membrane
- 10. Smallest discrete unit of energy
Down
- 1. Large molecule essential for life
- 2. Force attracting objects to Earth
- 3. One body blocking another in space
- 4. Group of similar living organisms
- 6. Positively charged particle
- 7. Pure substance on periodic table
Show answers
- 5 Across: Slow-moving river of ice (7)GLACIER
- 7 Across: Biological catalyst for reactions (6)ENZYME
- 8 Across: Preserved remains of ancient life (6)FOSSIL
- 9 Across: Diffusion of water through a membrane (7)OSMOSIS
- 10 Across: Smallest discrete unit of energy (7)QUANTUM
- 1 Down: Large molecule essential for life (7)PROTEIN
- 2 Down: Force attracting objects to Earth (7)GRAVITY
- 3 Down: One body blocking another in space (7)ECLIPSE
- 4 Down: Group of similar living organisms (7)SPECIES
- 6 Down: Positively charged particle (6)PROTON
- 7 Down: Pure substance on periodic table (7)ELEMENT
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.
Who are classic crosswords best suited for?
Classic crossword puzzles are ideal for adults and older students who enjoy vocabulary challenges and general knowledge trivia. They work well for solo relaxation, classroom activities, or group puzzle-solving sessions.
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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.