Classic Crosswords Classic Science Hard — Set 18
🔬 Science Crossword #1
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Across
- 2. The passing of traits from parents to their children
- 4. To find the size, amount, or degree of something
- 5. Related to the large plates that make up Earth's surface
- 8. Small pieces of rock and soil carried by water and wind
Down
- 1. All the chemical processes in your body that keep you alive
- 3. Two or more substances mixed together but not chemically joined
- 6. The tiny building block that makes up all living things
- 7. Vibrations that travel through the air and are heard by ears
Show answers
- 2 Across: The passing of traits from parents to their children (8)HEREDITY
- 4 Across: To find the size, amount, or degree of something (7)MEASURE
- 5 Across: Related to the large plates that make up Earth's surface (8)TECTONIC
- 8 Across: Small pieces of rock and soil carried by water and wind (8)SEDIMENT
- 1 Down: All the chemical processes in your body that keep you alive (10)METABOLISM
- 3 Down: Two or more substances mixed together but not chemically joined (7)MIXTURE
- 6 Down: The tiny building block that makes up all living things (4)CELL
- 7 Down: Vibrations that travel through the air and are heard by ears (5)SOUND
🔬 Science Crossword #2
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Across
- 1. A sudden shaking of the ground caused by movements deep inside Earth
- 5. Facts and information collected from experiments
- 8. The bending of light as it passes from one material to another
Down
- 2. The rate at which something speeds up
- 3. A form of energy that makes things warm
- 4. Facts that show something is true
- 6. To say what you think will happen based on evidence
- 7. To sort things into groups based on their features
Show answers
- 1 Across: A sudden shaking of the ground caused by movements deep inside Earth (10)EARTHQUAKE
- 5 Across: Facts and information collected from experiments (4)DATA
- 8 Across: The bending of light as it passes from one material to another (10)REFRACTION
- 2 Down: The rate at which something speeds up (12)ACCELERATION
- 3 Down: A form of energy that makes things warm (4)HEAT
- 4 Down: Facts that show something is true (8)EVIDENCE
- 6 Down: To say what you think will happen based on evidence (7)PREDICT
- 7 Down: To sort things into groups based on their features (8)CLASSIFY
🔬 Science Crossword #3
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Across
- 3. A state of matter that spreads to fill any space
- 6. The tendency of an object to stay still or keep moving
- 7. A form of energy that allows us to see
- 8. How hot or cold something is
Down
- 1. A form of energy used to power lights and machines
- 2. A tool that makes very tiny things look bigger
- 4. To study something carefully to understand it
- 5. Facts and information collected from experiments
Show answers
- 3 Across: A state of matter that spreads to fill any space (3)GAS
- 6 Across: The tendency of an object to stay still or keep moving (7)INERTIA
- 7 Across: A form of energy that allows us to see (5)LIGHT
- 8 Across: How hot or cold something is (11)TEMPERATURE
- 1 Down: A form of energy used to power lights and machines (11)ELECTRICITY
- 2 Down: A tool that makes very tiny things look bigger (10)MICROSCOPE
- 4 Down: To study something carefully to understand it (7)ANALYZE
- 5 Down: Facts and information collected from experiments (4)DATA
🔬 Science Crossword #4
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Across
- 2. Related to the large plates that make up Earth's surface
- 3. Facts that show something is true
- 5. A push or pull that can change how something moves
- 8. A glass building for growing plants or the warming effect on Earth
Down
- 1. Vibrations that travel through the air and are heard by ears
- 4. Something in an experiment that can be changed or measured
- 6. A tiny particle of light energy
- 7. The amount of matter in an object
Show answers
- 2 Across: Related to the large plates that make up Earth's surface (8)TECTONIC
- 3 Across: Facts that show something is true (8)EVIDENCE
- 5 Across: A push or pull that can change how something moves (5)FORCE
- 8 Across: A glass building for growing plants or the warming effect on Earth (10)GREENHOUSE
- 1 Down: Vibrations that travel through the air and are heard by ears (5)SOUND
- 4 Down: Something in an experiment that can be changed or measured (8)VARIABLE
- 6 Down: A tiny particle of light energy (6)PHOTON
- 7 Down: The amount of matter in an object (4)MASS
🔬 Science Crossword #5
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Across
- 5. The invisible force that pulls things toward the Earth
- 7. The bending of light as it passes from one material to another
Down
- 1. A path that electricity travels along
- 2. A gas in the air that living things need to breathe
- 3. A form of energy used to power lights and machines
- 4. Two or more substances mixed together but not chemically joined
- 6. A community of living things and their environment working together
- 8. The part of an experiment that stays the same for comparison
Show answers
- 5 Across: The invisible force that pulls things toward the Earth (7)GRAVITY
- 7 Across: The bending of light as it passes from one material to another (10)REFRACTION
- 1 Down: A path that electricity travels along (7)CIRCUIT
- 2 Down: A gas in the air that living things need to breathe (6)OXYGEN
- 3 Down: A form of energy used to power lights and machines (11)ELECTRICITY
- 4 Down: Two or more substances mixed together but not chemically joined (7)MIXTURE
- 6 Down: A community of living things and their environment working together (9)ECOSYSTEM
- 8 Down: The part of an experiment that stays the same for comparison (7)CONTROL
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.