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