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