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