Classic Crosswords Science Medium — Set 18
🔬 Science Crossword #1
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Across
- 3. A gas in the air that living things need to breathe
- 6. The tiny building block that makes up all living things
- 7. A quick back-and-forth movement
- 8. An object that attracts iron and some other metals
- 9. The upward force that makes things float in water
Down
- 1. The breaking down of rocks by weather, water, and living things
- 2. The distance between one wave peak and the next
- 4. A change in a living thing that helps it survive
- 5. To sort things into groups based on their features
Show answers
- 3 Across: A gas in the air that living things need to breathe (6)OXYGEN
- 6 Across: The tiny building block that makes up all living things (4)CELL
- 7 Across: A quick back-and-forth movement (9)VIBRATION
- 8 Across: An object that attracts iron and some other metals (6)MAGNET
- 9 Across: The upward force that makes things float in water (8)BUOYANCY
- 1 Down: The breaking down of rocks by weather, water, and living things (10)WEATHERING
- 2 Down: The distance between one wave peak and the next (10)WAVELENGTH
- 4 Down: A change in a living thing that helps it survive (10)ADAPTATION
- 5 Down: To sort things into groups based on their features (8)CLASSIFY
🔬 Science Crossword #2
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Across
- 3. A form of energy that makes things warm
- 5. A state of matter that spreads to fill any space
- 6. To sort things into groups based on their features
- 7. Two or more substances mixed together but not chemically joined
Down
- 1. The invisible force that pulls things toward the Earth
- 2. The power that makes things move or change
- 3. An educated guess about what will happen in an experiment
- 4. A material that does not let electricity or heat pass through easily
Show answers
- 3 Across: A form of energy that makes things warm (4)HEAT
- 5 Across: A state of matter that spreads to fill any space (3)GAS
- 6 Across: To sort things into groups based on their features (8)CLASSIFY
- 7 Across: Two or more substances mixed together but not chemically joined (7)MIXTURE
- 1 Down: The invisible force that pulls things toward the Earth (7)GRAVITY
- 2 Down: The power that makes things move or change (6)ENERGY
- 3 Down: An educated guess about what will happen in an experiment (10)HYPOTHESIS
- 4 Down: A material that does not let electricity or heat pass through easily (9)INSULATOR
🔬 Science Crossword #3
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Across
- 3. A group of living things that are the same kind
- 4. How hot or cold something is
- 6. The tendency of an object to stay still or keep moving
- 8. A community of living things and their environment working together
- 9. A state of matter that holds its shape
Down
- 1. The rate at which something speeds up
- 2. A natural solid substance found in the earth
- 5. The power that makes things move or change
- 7. The remains of a plant or animal from long ago preserved in rock
- 10. The molecule inside cells that carries instructions for life
Show answers
- 3 Across: A group of living things that are the same kind (7)SPECIES
- 4 Across: How hot or cold something is (11)TEMPERATURE
- 6 Across: The tendency of an object to stay still or keep moving (7)INERTIA
- 8 Across: A community of living things and their environment working together (9)ECOSYSTEM
- 9 Across: A state of matter that holds its shape (5)SOLID
- 1 Down: The rate at which something speeds up (12)ACCELERATION
- 2 Down: A natural solid substance found in the earth (7)MINERAL
- 5 Down: The power that makes things move or change (6)ENERGY
- 7 Down: The remains of a plant or animal from long ago preserved in rock (6)FOSSIL
- 10 Down: The molecule inside cells that carries instructions for life (3)DNA
🔬 Science Crossword #4
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Across
- 4. A substance made of two or more elements bonded together
- 7. A curved piece of glass that bends light
- 8. The smallest piece of matter that makes up everything
- 10. How hot or cold something is
Down
- 1. A hard solid piece of the Earth made of minerals
- 2. A push or pull that can change how something moves
- 3. A mountain with an opening that can erupt hot lava
- 5. A material that does not let electricity or heat pass through easily
- 6. A path that electricity travels along
- 9. Two or more substances mixed together but not chemically joined
Show answers
- 4 Across: A substance made of two or more elements bonded together (8)COMPOUND
- 7 Across: A curved piece of glass that bends light (4)LENS
- 8 Across: The smallest piece of matter that makes up everything (4)ATOM
- 10 Across: How hot or cold something is (11)TEMPERATURE
- 1 Down: A hard solid piece of the Earth made of minerals (4)ROCK
- 2 Down: A push or pull that can change how something moves (5)FORCE
- 3 Down: A mountain with an opening that can erupt hot lava (7)VOLCANO
- 5 Down: A material that does not let electricity or heat pass through easily (9)INSULATOR
- 6 Down: A path that electricity travels along (7)CIRCUIT
- 9 Down: Two or more substances mixed together but not chemically joined (7)MIXTURE
🔬 Science Crossword #5
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Across
- 2. When one substance soaks up or takes in another
- 3. A tool for measuring temperature
- 5. The path water takes as it moves between Earth and sky
- 6. The tendency of an object to stay still or keep moving
- 7. Related to the large plates that make up Earth's surface
Down
- 1. Two or more atoms joined together
- 4. Small pieces of rock and soil carried by water and wind
- 5. A pattern of energy moving through space or matter
Show answers
- 2 Across: When one substance soaks up or takes in another (10)ABSORPTION
- 3 Across: A tool for measuring temperature (11)THERMOMETER
- 5 Across: The path water takes as it moves between Earth and sky (11)WATER CYCLE
- 6 Across: The tendency of an object to stay still or keep moving (7)INERTIA
- 7 Across: Related to the large plates that make up Earth's surface (8)TECTONIC
- 1 Down: Two or more atoms joined together (8)MOLECULE
- 4 Down: Small pieces of rock and soil carried by water and wind (8)SEDIMENT
- 5 Down: A pattern of energy moving through space or matter (4)WAVE
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.