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