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