Classic Crosswords Science Hard — Set 21
🔬 Science Crossword #1
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Across
- 4. When a solid mixes into a liquid and seems to disappear
- 7. A tool for measuring temperature
- 8. A change in a living thing that helps it survive
- 9. The act of moving or changing position
Down
- 1. The natural home of an animal or plant
- 2. The invisible force that pulls things toward the Earth
- 3. When water changes from a liquid to a gas
- 5. A substance that living things need for energy and growth
- 6. The passing of traits from parents to their children
Show answers
- 4 Across: When a solid mixes into a liquid and seems to disappear (8)DISSOLVE
- 7 Across: A tool for measuring temperature (11)THERMOMETER
- 8 Across: A change in a living thing that helps it survive (10)ADAPTATION
- 9 Across: The act of moving or changing position (6)MOTION
- 1 Down: The natural home of an animal or plant (7)HABITAT
- 2 Down: The invisible force that pulls things toward the Earth (7)GRAVITY
- 3 Down: When water changes from a liquid to a gas (11)EVAPORATION
- 5 Down: A substance that living things need for energy and growth (8)NUTRIENT
- 6 Down: The passing of traits from parents to their children (8)HEREDITY
🔬 Science Crossword #2
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Across
- 1. A natural solid substance found in the earth
- 5. The steps followed to do an experiment
- 6. Any living thing such as a plant or animal
- 7. When a solid mixes into a liquid and seems to disappear
- 8. The speed of something in a given direction
Down
- 2. A test done to discover something new
- 3. A sample of something used for study
- 4. Vibrations that travel through the air and are heard by ears
Show answers
- 1 Across: A natural solid substance found in the earth (7)MINERAL
- 5 Across: The steps followed to do an experiment (9)PROCEDURE
- 6 Across: Any living thing such as a plant or animal (8)ORGANISM
- 7 Across: When a solid mixes into a liquid and seems to disappear (8)DISSOLVE
- 8 Across: The speed of something in a given direction (8)VELOCITY
- 2 Down: A test done to discover something new (10)EXPERIMENT
- 3 Down: A sample of something used for study (8)SPECIMEN
- 4 Down: Vibrations that travel through the air and are heard by ears (5)SOUND
🔬 Science Crossword #3
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Across
- 1. A form of energy used to power lights and machines
- 3. A form of energy that allows us to see
- 7. The steps followed to do an experiment
- 8. Two or more substances mixed together but not chemically joined
Down
- 2. The part of an experiment that stays the same for comparison
- 4. Vibrations that travel through the air and are heard by ears
- 5. A curved piece of glass that bends light
- 6. A glass container used in science experiments
Show answers
- 1 Across: A form of energy used to power lights and machines (11)ELECTRICITY
- 3 Across: A form of energy that allows us to see (5)LIGHT
- 7 Across: The steps followed to do an experiment (9)PROCEDURE
- 8 Across: Two or more substances mixed together but not chemically joined (7)MIXTURE
- 2 Down: The part of an experiment that stays the same for comparison (7)CONTROL
- 4 Down: Vibrations that travel through the air and are heard by ears (5)SOUND
- 5 Down: A curved piece of glass that bends light (4)LENS
- 6 Down: A glass container used in science experiments (6)BEAKER
🔬 Science Crossword #4
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Across
- 4. A glass container used in science experiments
- 5. Anything that takes up space and has weight
- 7. Facts and information collected from experiments
- 8. The force that makes magnets attract or repel
- 9. A chemical change when substances interact
Down
- 1. How hot or cold something is
- 2. The force that slows things down when they rub together
- 3. To write down information for later use
- 5. All the chemical processes in your body that keep you alive
- 6. A change in a living thing that helps it survive
Show answers
- 4 Across: A glass container used in science experiments (6)BEAKER
- 5 Across: Anything that takes up space and has weight (6)MATTER
- 7 Across: Facts and information collected from experiments (4)DATA
- 8 Across: The force that makes magnets attract or repel (9)MAGNETISM
- 9 Across: A chemical change when substances interact (8)REACTION
- 1 Down: How hot or cold something is (11)TEMPERATURE
- 2 Down: The force that slows things down when they rub together (8)FRICTION
- 3 Down: To write down information for later use (6)RECORD
- 5 Down: All the chemical processes in your body that keep you alive (10)METABOLISM
- 6 Down: A change in a living thing that helps it survive (10)ADAPTATION
🔬 Science Crossword #5
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Across
- 1. The process of getting bigger or more developed
- 2. Anything that takes up space and has weight
- 3. Facts that show something is true
- 4. A final decision reached after studying results
- 5. A tool that makes very tiny things look bigger
- 6. A form of energy that makes things warm
- 7. A glass container used in science experiments
Down
- 1. A glass building for growing plants or the warming effect on Earth
- 2. The amount of matter in an object
- 5. To find the size, amount, or degree of something
Show answers
- 1 Across: The process of getting bigger or more developed (6)GROWTH
- 2 Across: Anything that takes up space and has weight (6)MATTER
- 3 Across: Facts that show something is true (8)EVIDENCE
- 4 Across: A final decision reached after studying results (10)CONCLUSION
- 5 Across: A tool that makes very tiny things look bigger (10)MICROSCOPE
- 6 Across: A form of energy that makes things warm (4)HEAT
- 7 Across: A glass container used in science experiments (6)BEAKER
- 1 Down: A glass building for growing plants or the warming effect on Earth (10)GREENHOUSE
- 2 Down: The amount of matter in an object (4)MASS
- 5 Down: To find the size, amount, or degree of something (7)MEASURE
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.