Classic Crosswords Classic Science Hard — Set 9
🔬 Science Crossword #1
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Across
- 2. Uncharged particle in nucleus
- 4. Group of similar living organisms
- 6. Large molecule essential for life
- 7. Substance providing immunity
- 8. One body blocking another in space
- 10. Mixture producing intense heat
- 11. Fourth state of matter
- 12. Solid with ordered atomic structure
Down
- 1. Slow-moving river of ice
- 3. Diffusion of water through a membrane
- 5. A word related to science
- 9. Pure substance on periodic table
Show answers
- 2 Across: Uncharged particle in nucleus (7)NEUTRON
- 4 Across: Group of similar living organisms (7)SPECIES
- 6 Across: Large molecule essential for life (7)PROTEIN
- 7 Across: Substance providing immunity (7)VACCINE
- 8 Across: One body blocking another in space (7)ECLIPSE
- 10 Across: Mixture producing intense heat (7)THERMIT
- 11 Across: Fourth state of matter (6)PLASMA
- 12 Across: Solid with ordered atomic structure (7)CRYSTAL
- 1 Down: Slow-moving river of ice (7)GLACIER
- 3 Down: Diffusion of water through a membrane (7)OSMOSIS
- 5 Down: A word related to science (12)SPECIFICALLY
- 9 Down: Pure substance on periodic table (7)ELEMENT
🔬 Science Crossword #2
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Across
- 2. A word related to science
- 5. Large molecule essential for life
- 7. A word related to science
- 9. A word related to science
- 10. Center of an atom or cell
Down
- 1. Fourth state of matter
- 3. A word related to science
- 4. Wearing away of land by water or wind
- 6. Solid with ordered atomic structure
- 8. Group of similar living organisms
Show answers
- 2 Across: A word related to science (12)GENERATIONAL
- 5 Across: Large molecule essential for life (7)PROTEIN
- 7 Across: A word related to science (11)SPINOSAURUS
- 9 Across: A word related to science (11)KINESTHETIC
- 10 Across: Center of an atom or cell (7)NUCLEUS
- 1 Down: Fourth state of matter (6)PLASMA
- 3 Down: A word related to science (12)EXPERIMENTAL
- 4 Down: Wearing away of land by water or wind (7)EROSION
- 6 Down: Solid with ordered atomic structure (7)CRYSTAL
- 8 Down: Group of similar living organisms (7)SPECIES
🔬 Science Crossword #3
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Across
- 2. Slow-moving river of ice
- 7. A word related to science
- 9. Uncharged particle in nucleus
- 10. Fourth state of matter
Down
- 1. Force attracting objects to Earth
- 3. Large molecule essential for life
- 4. Substance providing immunity
- 5. Preserved remains of ancient life
- 6. Smallest discrete unit of energy
- 8. Biological catalyst for reactions
Show answers
- 2 Across: Slow-moving river of ice (7)GLACIER
- 7 Across: A word related to science (12)SPECIFICALLY
- 9 Across: Uncharged particle in nucleus (7)NEUTRON
- 10 Across: Fourth state of matter (6)PLASMA
- 1 Down: Force attracting objects to Earth (7)GRAVITY
- 3 Down: Large molecule essential for life (7)PROTEIN
- 4 Down: Substance providing immunity (7)VACCINE
- 5 Down: Preserved remains of ancient life (6)FOSSIL
- 6 Down: Smallest discrete unit of energy (7)QUANTUM
- 8 Down: Biological catalyst for reactions (6)ENZYME
🔬 Science Crossword #4
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Across
- 4. Fourth state of matter
- 6. Positively charged particle
- 8. Pure substance on periodic table
- 11. One body blocking another in space
- 12. Preserved remains of ancient life
Down
- 1. Uncharged particle in nucleus
- 2. Substance providing immunity
- 3. Naturally occurring inorganic solid
- 5. Force attracting objects to Earth
- 7. A word related to science
- 9. Wearing away of land by water or wind
- 10. Group of similar living organisms
Show answers
- 4 Across: Fourth state of matter (6)PLASMA
- 6 Across: Positively charged particle (6)PROTON
- 8 Across: Pure substance on periodic table (7)ELEMENT
- 11 Across: One body blocking another in space (7)ECLIPSE
- 12 Across: Preserved remains of ancient life (6)FOSSIL
- 1 Down: Uncharged particle in nucleus (7)NEUTRON
- 2 Down: Substance providing immunity (7)VACCINE
- 3 Down: Naturally occurring inorganic solid (7)MINERAL
- 5 Down: Force attracting objects to Earth (7)GRAVITY
- 7 Down: A word related to science (4)ATOM
- 9 Down: Wearing away of land by water or wind (7)EROSION
- 10 Down: Group of similar living organisms (7)SPECIES
🔬 Science Crossword #5
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Across
- 1. One body blocking another in space
- 4. A word related to science
- 7. Group of similar living organisms
- 9. Preserved remains of ancient life
- 10. Center of an atom or cell
Down
- 2. Large molecule essential for life
- 3. A word related to science
- 5. Substance providing immunity
- 6. Diffusion of water through a membrane
- 8. Biological catalyst for reactions
Show answers
- 1 Across: One body blocking another in space (7)ECLIPSE
- 4 Across: A word related to science (12)METICULOUSLY
- 7 Across: Group of similar living organisms (7)SPECIES
- 9 Across: Preserved remains of ancient life (6)FOSSIL
- 10 Across: Center of an atom or cell (7)NUCLEUS
- 2 Down: Large molecule essential for life (7)PROTEIN
- 3 Down: A word related to science (12)GENERATIONAL
- 5 Down: Substance providing immunity (7)VACCINE
- 6 Down: Diffusion of water through a membrane (7)OSMOSIS
- 8 Down: Biological catalyst for reactions (6)ENZYME
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.
How many classic crossword puzzles are available?
Our library includes dozens of classic crossword puzzles spanning topics like general knowledge, geography, history, and sports. New puzzles are added regularly so you always have fresh challenges to print and solve.
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.