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