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