Classic Crosswords Classic Nature Hard — Set 27
🔬 Science Crossword #1
| 1 | 2 | |||||||||||
| 3 | ||||||||||||
| 4 | 5 | |||||||||||
| 6 | 7 | 8 | ||||||||||
| 9 | ||||||||||||
Across
- 3. Two or more atoms joined together
- 4. A quick back-and-forth movement
- 6. A tool for measuring temperature
- 9. A group of living things that are the same kind
Down
- 1. A change in a living thing that helps it survive
- 2. A form of energy that makes things warm
- 5. A substance that living things need for energy and growth
- 7. A hard solid piece of the Earth made of minerals
- 8. The power that makes things move or change
Show answers
- 3 Across: Two or more atoms joined together (8)MOLECULE
- 4 Across: A quick back-and-forth movement (9)VIBRATION
- 6 Across: A tool for measuring temperature (11)THERMOMETER
- 9 Across: A group of living things that are the same kind (7)SPECIES
- 1 Down: A change in a living thing that helps it survive (10)ADAPTATION
- 2 Down: A form of energy that makes things warm (4)HEAT
- 5 Down: A substance that living things need for energy and growth (8)NUTRIENT
- 7 Down: A hard solid piece of the Earth made of minerals (4)ROCK
- 8 Down: The power that makes things move or change (6)ENERGY
🔬 Science Crossword #2
| 1 | 2 | |||||||||||
| 3 | ||||||||||||
| 4 | 5 | |||||||||||
| 6 | ||||||||||||
| 7 | ||||||||||||
| 8 | ||||||||||||
Across
- 1. A final decision reached after studying results
- 3. Two or more atoms joined together
- 4. An educated guess about what will happen in an experiment
- 6. A state of matter that flows and takes the shape of its container
- 7. The tiny building block that makes up all living things
- 8. A tool that makes very tiny things look bigger
Down
- 2. The band of colors formed when white light is split
- 5. A material that does not let electricity or heat pass through easily
Show answers
- 1 Across: A final decision reached after studying results (10)CONCLUSION
- 3 Across: Two or more atoms joined together (8)MOLECULE
- 4 Across: An educated guess about what will happen in an experiment (10)HYPOTHESIS
- 6 Across: A state of matter that flows and takes the shape of its container (6)LIQUID
- 7 Across: The tiny building block that makes up all living things (4)CELL
- 8 Across: A tool that makes very tiny things look bigger (10)MICROSCOPE
- 2 Down: The band of colors formed when white light is split (8)SPECTRUM
- 5 Down: A material that does not let electricity or heat pass through easily (9)INSULATOR
🔬 Science Crossword #3
| 1 | 2 | |||||||||||
| 3 | 4 | |||||||||||
| 5 | ||||||||||||
| 6 | 7 | |||||||||||
| 8 | ||||||||||||
Across
- 1. Anything that takes up space and has weight
- 5. A curved piece of glass that bends light
- 6. How hot or cold something is
- 8. The invisible force that pulls things toward the Earth
Down
- 2. A form of energy used to power lights and machines
- 3. The tendency of an object to stay still or keep moving
- 4. Carefully watching and noting what happens
- 7. The amount of matter in an object
Show answers
- 1 Across: Anything that takes up space and has weight (6)MATTER
- 5 Across: A curved piece of glass that bends light (4)LENS
- 6 Across: How hot or cold something is (11)TEMPERATURE
- 8 Across: The invisible force that pulls things toward the Earth (7)GRAVITY
- 2 Down: A form of energy used to power lights and machines (11)ELECTRICITY
- 3 Down: The tendency of an object to stay still or keep moving (7)INERTIA
- 4 Down: Carefully watching and noting what happens (11)OBSERVATION
- 7 Down: The amount of matter in an object (4)MASS
🔬 Science Crossword #4
| 1 | ||||||||||||
| 2 | ||||||||||||
| 3 | ||||||||||||
| 4 | ||||||||||||
| 5 | ||||||||||||
| 6 | ||||||||||||
| 7 | 8 | |||||||||||
| 9 | ||||||||||||
Across
- 1. A curved piece of glass that bends light
- 5. A substance that living things need for energy and growth
- 6. A mixture where one substance dissolves completely in another
- 7. A natural solid substance found in the earth
- 9. A material that electricity or heat can pass through easily
Down
- 1. A form of energy that allows us to see
- 2. A sudden shaking of the ground caused by movements deep inside Earth
- 3. A final decision reached after studying results
- 4. The remains of a plant or animal from long ago preserved in rock
- 8. A hard solid piece of the Earth made of minerals
Show answers
- 1 Across: A curved piece of glass that bends light (4)LENS
- 5 Across: A substance that living things need for energy and growth (8)NUTRIENT
- 6 Across: A mixture where one substance dissolves completely in another (8)SOLUTION
- 7 Across: A natural solid substance found in the earth (7)MINERAL
- 9 Across: A material that electricity or heat can pass through easily (9)CONDUCTOR
- 1 Down: A form of energy that allows us to see (5)LIGHT
- 2 Down: A sudden shaking of the ground caused by movements deep inside Earth (10)EARTHQUAKE
- 3 Down: A final decision reached after studying results (10)CONCLUSION
- 4 Down: The remains of a plant or animal from long ago preserved in rock (6)FOSSIL
- 8 Down: A hard solid piece of the Earth made of minerals (4)ROCK
🔬 Science Crossword #5
| 1 | ||||||||||||
| 2 | ||||||||||||
| 3 | 4 | |||||||||||
| 5 | ||||||||||||
| 6 | ||||||||||||
| 7 | ||||||||||||
| 8 |
Across
- 5. A substance that living things need for energy and growth
- 6. Anything that takes up space and has weight
- 7. A curved piece of glass that bends light
- 8. Facts that show something is true
Down
- 1. Related to the large plates that make up Earth's surface
- 2. When a gas cools and turns back into a liquid
- 3. The slow process of living things changing over many years
- 4. The steps followed to do an experiment
Show answers
- 5 Across: A substance that living things need for energy and growth (8)NUTRIENT
- 6 Across: Anything that takes up space and has weight (6)MATTER
- 7 Across: A curved piece of glass that bends light (4)LENS
- 8 Across: Facts that show something is true (8)EVIDENCE
- 1 Down: Related to the large plates that make up Earth's surface (8)TECTONIC
- 2 Down: When a gas cools and turns back into a liquid (12)CONDENSATION
- 3 Down: The slow process of living things changing over many years (9)EVOLUTION
- 4 Down: The steps followed to do an experiment (9)PROCEDURE
Solver Notes
Enjoy our collection of classic crossword puzzles featuring traditional grid layouts and a wide range of topics. Each puzzle is free to download, print, and solve at your own pace.
What are classic crossword puzzles?
Classic crossword puzzles use a traditional symmetric grid where solvers fill in words based on numbered clues. Each puzzle features interlocking horizontal and vertical answers that share common letters, creating an engaging word challenge.
How do I solve a classic crossword puzzle?
Start with the clues you know for certain and fill in those answers first. Use the crossing letters to help you figure out harder clues. Work through the across and down clues systematically, and don't be afraid to use a pencil so you can erase.
Who are classic crosswords best suited for?
Classic crossword puzzles are ideal for adults and older students who enjoy vocabulary challenges and general knowledge trivia. They work well for solo relaxation, classroom activities, or group puzzle-solving sessions.
How many classic crossword puzzles are available?
Our library includes dozens of classic crossword puzzles spanning topics like general knowledge, geography, history, and sports. New puzzles are added regularly so you always have fresh challenges to print and solve.
What is the difference between classic and quick crosswords?
Classic crossword puzzles use larger grids with more complex clues and require broader vocabulary knowledge. Quick crosswords feature smaller grids and simpler clues, making them faster to complete and more accessible for beginners.