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