Classic Crosswords Classic Nature Hard — Set 29
🔬 Science Crossword #1
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Across
- 5. To find the size, amount, or degree of something
- 6. Facts that show something is true
- 7. The power that makes things move or change
- 8. A form of energy that makes things warm
- 10. The slow process of living things changing over many years
Down
- 1. How often something happens in a given time
- 2. A unit of information that passes traits from parents to children
- 3. When a gas cools and turns back into a liquid
- 4. A substance that living things need for energy and growth
- 5. A natural solid substance found in the earth
- 9. The molecule inside cells that carries instructions for life
Show answers
- 5 Across: To find the size, amount, or degree of something (7)MEASURE
- 6 Across: Facts that show something is true (8)EVIDENCE
- 7 Across: The power that makes things move or change (6)ENERGY
- 8 Across: A form of energy that makes things warm (4)HEAT
- 10 Across: The slow process of living things changing over many years (9)EVOLUTION
- 1 Down: How often something happens in a given time (9)FREQUENCY
- 2 Down: A unit of information that passes traits from parents to children (4)GENE
- 3 Down: When a gas cools and turns back into a liquid (12)CONDENSATION
- 4 Down: A substance that living things need for energy and growth (8)NUTRIENT
- 5 Down: A natural solid substance found in the earth (7)MINERAL
- 9 Down: The molecule inside cells that carries instructions for life (3)DNA
🔬 Science Crossword #2
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Across
- 1. The central part of a cell that controls its activity
- 3. The power that makes things move or change
- 5. The passing of traits from parents to their children
- 8. How hot or cold something is
- 9. Two or more substances mixed together but not chemically joined
Down
- 2. A group of living things that are the same kind
- 4. Small pieces of rock and soil carried by water and wind
- 6. Anything that takes up space and has weight
- 7. A state of matter that flows and takes the shape of its container
Show answers
- 1 Across: The central part of a cell that controls its activity (7)NUCLEUS
- 3 Across: The power that makes things move or change (6)ENERGY
- 5 Across: The passing of traits from parents to their children (8)HEREDITY
- 8 Across: How hot or cold something is (11)TEMPERATURE
- 9 Across: Two or more substances mixed together but not chemically joined (7)MIXTURE
- 2 Down: A group of living things that are the same kind (7)SPECIES
- 4 Down: Small pieces of rock and soil carried by water and wind (8)SEDIMENT
- 6 Down: Anything that takes up space and has weight (6)MATTER
- 7 Down: A state of matter that flows and takes the shape of its container (6)LIQUID
🔬 Science Crossword #3
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Across
- 2. The tiny building block that makes up all living things
- 4. A state of matter that spreads to fill any space
- 7. When light bounces off a surface like a mirror
- 8. To study something carefully to understand it
Down
- 1. The breaking down of rocks by weather, water, and living things
- 2. The part of an experiment that stays the same for comparison
- 3. A mixture where one substance dissolves completely in another
- 5. A glass building for growing plants or the warming effect on Earth
- 6. A mountain with an opening that can erupt hot lava
Show answers
- 2 Across: The tiny building block that makes up all living things (4)CELL
- 4 Across: A state of matter that spreads to fill any space (3)GAS
- 7 Across: When light bounces off a surface like a mirror (10)REFLECTION
- 8 Across: To study something carefully to understand it (7)ANALYZE
- 1 Down: The breaking down of rocks by weather, water, and living things (10)WEATHERING
- 2 Down: The part of an experiment that stays the same for comparison (7)CONTROL
- 3 Down: A mixture where one substance dissolves completely in another (8)SOLUTION
- 5 Down: A glass building for growing plants or the warming effect on Earth (10)GREENHOUSE
- 6 Down: A mountain with an opening that can erupt hot lava (7)VOLCANO
🔬 Science Crossword #4
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Across
- 1. A path that electricity travels along
- 6. The tendency of an object to stay still or keep moving
- 7. The part of an experiment that stays the same for comparison
- 8. Vibrations that travel through the air and are heard by ears
- 9. Facts that show something is true
Down
- 2. A chemical change when substances interact
- 3. A material that does not let electricity or heat pass through easily
- 4. A pattern of energy moving through space or matter
- 5. Two or more substances mixed together but not chemically joined
Show answers
- 1 Across: A path that electricity travels along (7)CIRCUIT
- 6 Across: The tendency of an object to stay still or keep moving (7)INERTIA
- 7 Across: The part of an experiment that stays the same for comparison (7)CONTROL
- 8 Across: Vibrations that travel through the air and are heard by ears (5)SOUND
- 9 Across: Facts that show something is true (8)EVIDENCE
- 2 Down: A chemical change when substances interact (8)REACTION
- 3 Down: A material that does not let electricity or heat pass through easily (9)INSULATOR
- 4 Down: A pattern of energy moving through space or matter (4)WAVE
- 5 Down: Two or more substances mixed together but not chemically joined (7)MIXTURE
🔬 Science Crossword #5
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Across
- 1. The force that makes magnets attract or repel
- 4. The process of making new living things
- 7. A chemical change when substances interact
- 9. The central part of a cell that controls its activity
- 10. A pure substance made of only one type of atom
Down
- 2. A natural solid substance found in the earth
- 3. A group of living things that are the same kind
- 5. The act of moving or changing position
- 6. A curved piece of glass that bends light
- 8. A unit of information that passes traits from parents to children
Show answers
- 1 Across: The force that makes magnets attract or repel (9)MAGNETISM
- 4 Across: The process of making new living things (12)REPRODUCTION
- 7 Across: A chemical change when substances interact (8)REACTION
- 9 Across: The central part of a cell that controls its activity (7)NUCLEUS
- 10 Across: A pure substance made of only one type of atom (7)ELEMENT
- 2 Down: A natural solid substance found in the earth (7)MINERAL
- 3 Down: A group of living things that are the same kind (7)SPECIES
- 5 Down: The act of moving or changing position (6)MOTION
- 6 Down: A curved piece of glass that bends light (4)LENS
- 8 Down: A unit of information that passes traits from parents to children (4)GENE
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.