Classic Crosswords Classic Nature Hard — Set 5
🔬 Science Crossword #1
| 1 | 2 | |||||||||||||
| 3 | ||||||||||||||
| 4 | ||||||||||||||
| 5 | 6 | |||||||||||||
| 7 | 8 | |||||||||||||
| 9 | ||||||||||||||
| 10 | ||||||||||||||
| 11 | ||||||||||||||
Across
- 1. A word related to science
- 4. A word related to science
- 6. Diffusion of water through a membrane
- 7. Force attracting objects to Earth
- 9. Solid with ordered atomic structure
- 11. A word related to science
Down
- 2. A word related to science
- 3. A word related to science
- 5. Naturally occurring inorganic solid
- 8. Device for controlled nuclear reactions
- 10. A word related to science
Show answers
- 1 Across: A word related to science (8)MANDIBLE
- 4 Across: A word related to science (12)COMPOUND EYE
- 6 Across: Diffusion of water through a membrane (7)OSMOSIS
- 7 Across: Force attracting objects to Earth (7)GRAVITY
- 9 Across: Solid with ordered atomic structure (7)CRYSTAL
- 11 Across: A word related to science (8)PARASITE
- 2 Down: A word related to science (10)BENEFICIAL
- 3 Down: A word related to science (13)METAMORPHOSIS
- 5 Down: Naturally occurring inorganic solid (7)MINERAL
- 8 Down: Device for controlled nuclear reactions (7)REACTOR
- 10 Down: A word related to science (4)MOLT
🔬 Science Crossword #2
| 1 | ||||||||||||||
| 2 | 3 | |||||||||||||
| 4 | 5 | |||||||||||||
| 6 | ||||||||||||||
| 7 | ||||||||||||||
| 8 | ||||||||||||||
| 9 | ||||||||||||||
| 10 |
Across
- 2. Group of similar living organisms
- 7. A word related to science
- 9. One body blocking another in space
- 10. A word related to science
Down
- 1. Substance providing immunity
- 3. Fourth state of matter
- 4. Solid with ordered atomic structure
- 5. Wearing away of land by water or wind
- 6. Large molecule essential for life
- 7. A word related to science
- 8. Preserved remains of ancient life
Show answers
- 2 Across: Group of similar living organisms (7)SPECIES
- 7 Across: A word related to science (13)METAMORPHOSIS
- 9 Across: One body blocking another in space (7)ECLIPSE
- 10 Across: A word related to science (10)BENEFICIAL
- 1 Down: Substance providing immunity (7)VACCINE
- 3 Down: Fourth state of matter (6)PLASMA
- 4 Down: Solid with ordered atomic structure (7)CRYSTAL
- 5 Down: Wearing away of land by water or wind (7)EROSION
- 6 Down: Large molecule essential for life (7)PROTEIN
- 7 Down: A word related to science (8)MANDIBLE
- 8 Down: Preserved remains of ancient life (6)FOSSIL
🔬 Science Crossword #3
| 1 | 2 | |||||||||||||
| 3 | ||||||||||||||
| 4 | ||||||||||||||
| 5 | ||||||||||||||
| 6 | 7 | |||||||||||||
| 8 | 9 | |||||||||||||
| 10 | 11 | |||||||||||||
| 12 |
Across
- 1. A word related to science
- 4. Device for controlled nuclear reactions
- 9. Slow-moving river of ice
- 10. A word related to science
- 11. Fourth state of matter
- 12. Diffusion of water through a membrane
Down
- 2. Mixture producing intense heat
- 3. A word related to science
- 5. One body blocking another in space
- 6. Preserved remains of ancient life
- 7. A word related to science
- 8. Naturally occurring inorganic solid
Show answers
- 1 Across: A word related to science (8)PARASITE
- 4 Across: Device for controlled nuclear reactions (7)REACTOR
- 9 Across: Slow-moving river of ice (7)GLACIER
- 10 Across: A word related to science (6)LARVAE
- 11 Across: Fourth state of matter (6)PLASMA
- 12 Across: Diffusion of water through a membrane (7)OSMOSIS
- 2 Down: Mixture producing intense heat (7)THERMIT
- 3 Down: A word related to science (10)BENEFICIAL
- 5 Down: One body blocking another in space (7)ECLIPSE
- 6 Down: Preserved remains of ancient life (6)FOSSIL
- 7 Down: A word related to science (9)PROBOSCIS
- 8 Down: Naturally occurring inorganic solid (7)MINERAL
🔬 Science Crossword #4
| 1 | 2 | |||||||||||||
| 3 | ||||||||||||||
| 4 | ||||||||||||||
| 5 | ||||||||||||||
| 6 | 7 | |||||||||||||
| 8 | ||||||||||||||
| 9 | ||||||||||||||
| 10 | 11 | |||||||||||||
| 12 | ||||||||||||||
Across
- 3. A word related to science
- 4. A word related to science
- 9. Slow-moving river of ice
- 10. A word related to science
- 12. A word related to science
Down
- 1. Device for controlled nuclear reactions
- 2. A word related to science
- 5. A word related to science
- 6. Fourth state of matter
- 7. Diffusion of water through a membrane
- 8. Wearing away of land by water or wind
- 11. Positively charged particle
Show answers
- 3 Across: A word related to science (12)BENEFICIALLY
- 4 Across: A word related to science (7)ABDOMEN
- 9 Across: Slow-moving river of ice (7)GLACIER
- 10 Across: A word related to science (13)METAMORPHOSIS
- 12 Across: A word related to science (8)PARASITE
- 1 Down: Device for controlled nuclear reactions (7)REACTOR
- 2 Down: A word related to science (8)MANDIBLE
- 5 Down: A word related to science (6)MAGGOT
- 6 Down: Fourth state of matter (6)PLASMA
- 7 Down: Diffusion of water through a membrane (7)OSMOSIS
- 8 Down: Wearing away of land by water or wind (7)EROSION
- 11 Down: Positively charged particle (6)PROTON
🔬 Science Crossword #5
| 1 | ||||||||||||||
| 2 | ||||||||||||||
| 3 | 4 | |||||||||||||
| 5 | ||||||||||||||
| 6 | ||||||||||||||
| 7 | ||||||||||||||
| 8 | ||||||||||||||
| 9 | ||||||||||||||
| 10 | ||||||||||||||
| 11 | ||||||||||||||
Across
- 3. One body blocking another in space
- 7. A word related to science
- 9. A word related to science
- 10. Pure substance on periodic table
- 11. Fourth state of matter
Down
- 1. Group of similar living organisms
- 2. A word related to science
- 4. Positively charged particle
- 5. Smallest discrete unit of energy
- 6. Substance providing immunity
- 8. Naturally occurring inorganic solid
Show answers
- 3 Across: One body blocking another in space (7)ECLIPSE
- 7 Across: A word related to science (5)APHID
- 9 Across: A word related to science (6)MAGGOT
- 10 Across: Pure substance on periodic table (7)ELEMENT
- 11 Across: Fourth state of matter (6)PLASMA
- 1 Down: Group of similar living organisms (7)SPECIES
- 2 Down: A word related to science (12)BENEFICIALLY
- 4 Down: Positively charged particle (6)PROTON
- 5 Down: Smallest discrete unit of energy (7)QUANTUM
- 6 Down: Substance providing immunity (7)VACCINE
- 8 Down: Naturally occurring inorganic solid (7)MINERAL
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.