Challenge Crosswords Science Expert — Set 10
🔬 Science Crossword #1
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Across
- 3. Center of an atom or cell
- 5. Naturally occurring inorganic solid
- 6. One body blocking another in space
- 7. Large molecule essential for life
- 8. Force attracting objects to Earth
- 9. Diffusion of water through a membrane
Down
- 1. Biological catalyst for reactions
- 2. Slow-moving river of ice
- 4. Substance providing immunity
- 7. Fourth state of matter
Show answers
- 3 Across: Center of an atom or cell (7)NUCLEUS
- 5 Across: Naturally occurring inorganic solid (7)MINERAL
- 6 Across: One body blocking another in space (7)ECLIPSE
- 7 Across: Large molecule essential for life (7)PROTEIN
- 8 Across: Force attracting objects to Earth (7)GRAVITY
- 9 Across: Diffusion of water through a membrane (7)OSMOSIS
- 1 Down: Biological catalyst for reactions (6)ENZYME
- 2 Down: Slow-moving river of ice (7)GLACIER
- 4 Down: Substance providing immunity (7)VACCINE
- 7 Down: Fourth state of matter (6)PLASMA
🔬 Science Crossword #2
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Across
- 1. Device for controlled nuclear reactions
- 3. Fourth state of matter
- 7. Large molecule essential for life
- 8. Uncharged particle in nucleus
- 9. Mixture producing intense heat
- 10. Center of an atom or cell
- 12. Diffusion of water through a membrane
Down
- 2. Pure substance on periodic table
- 4. Group of similar living organisms
- 5. Positively charged particle
- 6. Preserved remains of ancient life
- 11. Biological catalyst for reactions
Show answers
- 1 Across: Device for controlled nuclear reactions (7)REACTOR
- 3 Across: Fourth state of matter (6)PLASMA
- 7 Across: Large molecule essential for life (7)PROTEIN
- 8 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
- 12 Across: Diffusion of water through a membrane (7)OSMOSIS
- 2 Down: Pure substance on periodic table (7)ELEMENT
- 4 Down: Group of similar living organisms (7)SPECIES
- 5 Down: Positively charged particle (6)PROTON
- 6 Down: Preserved remains of ancient life (6)FOSSIL
- 11 Down: Biological catalyst for reactions (6)ENZYME
🔬 Science Crossword #3
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Across
- 1. Uncharged particle in nucleus
- 6. Naturally occurring inorganic solid
- 8. Force attracting objects to Earth
- 9. Mixture producing intense heat
- 10. Pure substance on periodic table
Down
- 2. Diffusion of water through a membrane
- 3. Solid with ordered atomic structure
- 4. Slow-moving river of ice
- 5. Biological catalyst for reactions
- 7. Smallest discrete unit of energy
Show answers
- 1 Across: Uncharged particle in nucleus (7)NEUTRON
- 6 Across: Naturally occurring inorganic solid (7)MINERAL
- 8 Across: Force attracting objects to Earth (7)GRAVITY
- 9 Across: Mixture producing intense heat (7)THERMIT
- 10 Across: Pure substance on periodic table (7)ELEMENT
- 2 Down: Diffusion of water through a membrane (7)OSMOSIS
- 3 Down: Solid with ordered atomic structure (7)CRYSTAL
- 4 Down: Slow-moving river of ice (7)GLACIER
- 5 Down: Biological catalyst for reactions (6)ENZYME
- 7 Down: Smallest discrete unit of energy (7)QUANTUM
🔬 Science Crossword #4
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Across
- 2. Pure substance on periodic table
- 4. Diffusion of water through a membrane
- 8. Positively charged particle
- 10. Force attracting objects to Earth
- 12. Uncharged particle in nucleus
- 13. Biological catalyst for reactions
- 14. Solid with ordered atomic structure
Down
- 1. Fourth state of matter
- 3. One body blocking another in space
- 5. Naturally occurring inorganic solid
- 6. Group of similar living organisms
- 7. Preserved remains of ancient life
- 9. Smallest discrete unit of energy
- 11. Mixture producing intense heat
Show answers
- 2 Across: Pure substance on periodic table (7)ELEMENT
- 4 Across: Diffusion of water through a membrane (7)OSMOSIS
- 8 Across: Positively charged particle (6)PROTON
- 10 Across: Force attracting objects to Earth (7)GRAVITY
- 12 Across: Uncharged particle in nucleus (7)NEUTRON
- 13 Across: Biological catalyst for reactions (6)ENZYME
- 14 Across: Solid with ordered atomic structure (7)CRYSTAL
- 1 Down: Fourth state of matter (6)PLASMA
- 3 Down: One body blocking another in space (7)ECLIPSE
- 5 Down: Naturally occurring inorganic solid (7)MINERAL
- 6 Down: Group of similar living organisms (7)SPECIES
- 7 Down: Preserved remains of ancient life (6)FOSSIL
- 9 Down: Smallest discrete unit of energy (7)QUANTUM
- 11 Down: Mixture producing intense heat (7)THERMIT
🔬 Science Crossword #5
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Across
- 2. Smallest discrete unit of energy
- 6. Positively charged particle
- 9. Substance providing immunity
- 10. Pure substance on periodic table
- 11. Solid with ordered atomic structure
Down
- 1. Force attracting objects to Earth
- 3. Naturally occurring inorganic solid
- 4. Slow-moving river of ice
- 5. Group of similar living organisms
- 7. Center of an atom or cell
- 8. Uncharged particle in nucleus
Show answers
- 2 Across: Smallest discrete unit of energy (7)QUANTUM
- 6 Across: Positively charged particle (6)PROTON
- 9 Across: Substance providing immunity (7)VACCINE
- 10 Across: Pure substance on periodic table (7)ELEMENT
- 11 Across: Solid with ordered atomic structure (7)CRYSTAL
- 1 Down: Force attracting objects to Earth (7)GRAVITY
- 3 Down: Naturally occurring inorganic solid (7)MINERAL
- 4 Down: Slow-moving river of ice (7)GLACIER
- 5 Down: Group of similar living organisms (7)SPECIES
- 7 Down: Center of an atom or cell (7)NUCLEUS
- 8 Down: Uncharged particle in nucleus (7)NEUTRON
Solver Notes
Ready to test your crossword expertise? Our challenge crossword puzzles feature advanced clues, complex grids, and tricky wordplay designed for experienced solvers seeking a real brain workout.
What are challenge crossword puzzles?
Challenge crossword puzzles are expert-level word games featuring advanced vocabulary, complex clue structures, and larger grids. They are designed for experienced crossword solvers who want to push their skills beyond standard difficulty levels.
How do I improve at solving challenge crosswords?
Build your skills gradually by starting with classic crosswords and working up to challenge level. Learn common crossword abbreviations, practice recognizing wordplay patterns, and expand your vocabulary across history, science, and general knowledge topics.
Are challenge crosswords suitable for all ages?
Challenge crosswords are best suited for adults and advanced students who already have strong crossword-solving experience. The difficult clues and specialized vocabulary assume familiarity with crossword conventions and a broad knowledge base.
How many challenge crossword puzzles are available?
Our challenge collection includes expert-level crossword puzzles covering general knowledge, history, science, and mixed topics. Each puzzle is crafted to provide a satisfying difficulty level that tests even the most seasoned crossword enthusiasts.
What is the difference between challenge and daily crosswords?
Daily crosswords offer moderate difficulty suitable for regular solving sessions, while challenge crosswords feature significantly harder clues and more obscure vocabulary. Challenge puzzles typically take longer to complete and reward deep knowledge across many subjects.