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