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