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