Classic Crosswords Science Hard — Set 20
🔬 Science Crossword #1
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Across
- 4. The wearing away of land by water, wind, or ice
- 5. A pattern of energy moving through space or matter
- 7. Facts and information collected from experiments
- 8. Facts that show something is true
- 9. A gas in the air that living things need to breathe
Down
- 1. The natural home of an animal or plant
- 2. When a solid mixes into a liquid and seems to disappear
- 3. A push or pull that can change how something moves
- 6. A mountain with an opening that can erupt hot lava
Show answers
- 4 Across: The wearing away of land by water, wind, or ice (7)EROSION
- 5 Across: A pattern of energy moving through space or matter (4)WAVE
- 7 Across: Facts and information collected from experiments (4)DATA
- 8 Across: Facts that show something is true (8)EVIDENCE
- 9 Across: A gas in the air that living things need to breathe (6)OXYGEN
- 1 Down: The natural home of an animal or plant (7)HABITAT
- 2 Down: When a solid mixes into a liquid and seems to disappear (8)DISSOLVE
- 3 Down: A push or pull that can change how something moves (5)FORCE
- 6 Down: A mountain with an opening that can erupt hot lava (7)VOLCANO
🔬 Science Crossword #2
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Across
- 2. The steps followed to do an experiment
- 6. The upward force that makes things float in water
- 7. A tiny particle of light energy
- 8. When light bounces off a surface like a mirror
- 9. The tendency of an object to stay still or keep moving
Down
- 1. How often something happens in a given time
- 3. The breaking down of rocks by weather, water, and living things
- 4. An educated guess about what will happen in an experiment
- 5. A substance made of two or more elements bonded together
Show answers
- 2 Across: The steps followed to do an experiment (9)PROCEDURE
- 6 Across: The upward force that makes things float in water (8)BUOYANCY
- 7 Across: A tiny particle of light energy (6)PHOTON
- 8 Across: When light bounces off a surface like a mirror (10)REFLECTION
- 9 Across: The tendency of an object to stay still or keep moving (7)INERTIA
- 1 Down: How often something happens in a given time (9)FREQUENCY
- 3 Down: The breaking down of rocks by weather, water, and living things (10)WEATHERING
- 4 Down: An educated guess about what will happen in an experiment (10)HYPOTHESIS
- 5 Down: A substance made of two or more elements bonded together (8)COMPOUND
🔬 Science Crossword #3
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Across
- 2. A thread-like structure in cells that carries genetic information
- 7. A quick back-and-forth movement
- 8. The molecule inside cells that carries instructions for life
- 9. The band of colors formed when white light is split
Down
- 1. The tiny building block that makes up all living things
- 3. Any living thing such as a plant or animal
- 4. A sudden shaking of the ground caused by movements deep inside Earth
- 5. A push or pull that can change how something moves
- 6. The amount of space something takes up
Show answers
- 2 Across: A thread-like structure in cells that carries genetic information (10)CHROMOSOME
- 7 Across: A quick back-and-forth movement (9)VIBRATION
- 8 Across: The molecule inside cells that carries instructions for life (3)DNA
- 9 Across: The band of colors formed when white light is split (8)SPECTRUM
- 1 Down: The tiny building block that makes up all living things (4)CELL
- 3 Down: Any living thing such as a plant or animal (8)ORGANISM
- 4 Down: A sudden shaking of the ground caused by movements deep inside Earth (10)EARTHQUAKE
- 5 Down: A push or pull that can change how something moves (5)FORCE
- 6 Down: The amount of space something takes up (6)VOLUME
🔬 Science Crossword #4
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Across
- 1. Any water that falls from clouds such as rain, snow, or hail
- 4. Anything that takes up space and has weight
- 6. A group of living things that are the same kind
- 8. When one substance soaks up or takes in another
Down
- 2. A chemical change when substances interact
- 3. To study something carefully to understand it
- 5. The force that slows things down when they rub together
- 7. A hard solid piece of the Earth made of minerals
Show answers
- 1 Across: Any water that falls from clouds such as rain, snow, or hail (13)PRECIPITATION
- 4 Across: Anything that takes up space and has weight (6)MATTER
- 6 Across: A group of living things that are the same kind (7)SPECIES
- 8 Across: When one substance soaks up or takes in another (10)ABSORPTION
- 2 Down: A chemical change when substances interact (8)REACTION
- 3 Down: To study something carefully to understand it (7)ANALYZE
- 5 Down: The force that slows things down when they rub together (8)FRICTION
- 7 Down: A hard solid piece of the Earth made of minerals (4)ROCK
🔬 Science Crossword #5
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Across
- 3. The bending of light as it passes from one material to another
- 5. Vibrations that travel through the air and are heard by ears
- 6. A glass container used in science experiments
- 7. The band of colors formed when white light is split
- 8. A chemical change when substances interact
Down
- 1. A sudden shaking of the ground caused by movements deep inside Earth
- 2. A hard solid piece of the Earth made of minerals
- 4. Carefully watching and noting what happens
Show answers
- 3 Across: The bending of light as it passes from one material to another (10)REFRACTION
- 5 Across: Vibrations that travel through the air and are heard by ears (5)SOUND
- 6 Across: A glass container used in science experiments (6)BEAKER
- 7 Across: The band of colors formed when white light is split (8)SPECTRUM
- 8 Across: A chemical change when substances interact (8)REACTION
- 1 Down: A sudden shaking of the ground caused by movements deep inside Earth (10)EARTHQUAKE
- 2 Down: A hard solid piece of the Earth made of minerals (4)ROCK
- 4 Down: Carefully watching and noting what happens (11)OBSERVATION
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.