Printable Science Crosswords

Explore the fundamental principles and latest discoveries across physics, chemistry, biology, and astronomy. This topic covers scientific methods and breakthroughs.

10 puzzles — click Print on any puzzle below

Famous Inventions

Hard · 11×11 · 9 words
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  1. 2. Light amplification by stimulated emission of radiation
  2. 5. Adolphe's brassy woodwind hybrid
  3. 7. Edison's peephole into moving pictures
  4. 8. Seeing with echoes in the dark
  5. 9. A soft landing for a high flyer

Down

  1. 1. Bakeland's synthetic legacy of a thousand uses
  2. 3. A chesty listener that keeps the heart in check
  3. 4. The first time sound was etched in stone or wax
  4. 6. Otis gave this invention its ups and downs

Human Body

Medium · 11×11 · 11 words
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  1. 2. A specialized cell designed to transmit nerve impulses
  2. 4. Fibrous tissue that connects a muscle to a bone
  3. 7. Large gland behind the stomach that secretes digestive enzymes
  4. 9. The smallest type of blood vessel in the body
  5. 10. The main artery that carries blood away from the heart
  6. 11. The hardest substance in the human body covering the teeth

Down

  1. 1. The outer and thinner of the two bones in the lower leg
  2. 3. The shorter of the two bones in the human forearm
  3. 5. Spiral shaped cavity in the inner ear responsible for hearing
  4. 6. Natural pigment responsible for the color of skin and hair
  5. 8. Any of the eight small bones that make up the wrist

Physics

Medium · 11×11 · 14 words
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  1. 4. Positively charged particle in an atom's nucleus
  2. 5. Curved piece of glass used to focus light
  3. 7. Push or a pull
  4. 9. Upward force exerted by a fluid
  5. 12. Intrinsic angular momentum of a particle
  6. 13. Object producing a magnetic field
  7. 14. Basic unit of matter

Down

  1. 1. Region where a force can be felt
  2. 2. Capacity to do work
  3. 3. Disturbance that transfers energy
  4. 6. Subatomic particle with very little mass
  5. 8. Space devoid of matter
  6. 10. Fundamental property of matter, either positive or negative
  7. 11. Curved path of a celestial body

Chemistry

Medium · 11×11 · 14 words
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  1. 5. Positively charged subatomic particle
  2. 6. Substance with a pH less than 7
  3. 10. Substance formed from two or more elements
  4. 12. Smallest unit of matter
  5. 13. Subatomic particle with no charge
  6. 14. Alkaline compound

Down

  1. 1. Chemical connection
  2. 2. Negative electrode in an electrochemical cell
  3. 3. Charged particle
  4. 4. State of matter without fixed shape or volume
  5. 7. Atom with a different number of neutrons
  6. 8. Liquid doing the dissolving
  7. 9. Combining power of an element
  8. 11. Product of an acid-base reaction

Solar System

Hard · 15×15 · 18 words
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  1. 2. An asteroid that hides in a planet's orbit, no horse required
  2. 5. Smoked fish found in the belt of a small icy world
  3. 7. The frozen nursery at the very edge of the neighborhood
  4. 9. The thin air at the exit of the world
  5. 11. The ultimate divider between the light and the dark
  6. 15. Dry seas that never saw a drop of water
  7. 16. The absolute bottom of the celestial sphere
  8. 17. The brilliance of a surface, reflection without thought

Down

  1. 1. A close encounter of the lunar kind
  2. 2. Terrestrial rock with a cosmic melt
  3. 3. The rhythm of an eighteen-year shadow dance
  4. 4. A tiny glass bead fallen from the heavens
  5. 6. A grain of truth that grew into a world
  6. 8. The border where the sun finally loses its breath
  7. 10. A loop of flame that demands your attention
  8. 12. The point of greatest social distancing from the host
  9. 13. Small moon of Saturn or a Greek soul
  10. 14. The vast collection of absolutely nothing

Solar System

Medium · 11×11 · 14 words
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  1. 1. A bowl-shaped scar left by a cosmic impact
  2. 3. A streak of light caused by a falling rock
  3. 5. The empty space between celestial structures
  4. 7. Rocky wanderer found mostly between Mars and Jupiter
  5. 11. The hottest neighbor, often mistaken for a star
  6. 12. Polar light show caused by solar wind
  7. 13. The rusty world named for a god of war

Down

  1. 1. The sun's outermost layer, visible during totality
  2. 2. The distant cloud that marks the edge of the system
  3. 4. When one celestial body casts a shadow on another
  4. 6. The swift planet with the shortest year
  5. 8. The ringed beauty that could float in water
  6. 9. The changing appearances of the moon
  7. 10. Relating to the Earth's natural satellite

Solar System

Easy · 7×7 · 7 words
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  1. 1. The vast area that contains all the planets
  2. 5. How Earth differs from all other known planets
  3. 7. The sixth planet famous for its visible rings

Down

  1. 2. The very center of a planet or star
  2. 3. A burning ball of gas visible in the night sky
  3. 4. Energy from the Sun that helps plants grow
  4. 6. The star at the center of our solar system

Periodic Table

Hard · 15×15 · 24 words
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  1. 1. The standard of perfection that's 79 parts precious
  2. 7. Pressing matter for a blacksmith
  3. 8. Salt producer found in a messy halo Gen Z might recognize
  4. 9. A horizontal row that brings a sentence to a full stop
  5. 14. Relatively speaking, this element is named for a genius
  6. 16. A charged atom that's always in fashion
  7. 17. Not quite a moron, just the fifth element
  8. 18. A subterranean mammal's unit of measure
  9. 20. The sun's voice-altering inheritance
  10. 21. The outermost shell's capacity for a hanging drapery
  11. 22. The densest character in the entire cast
  12. 23. The 50th anniversary metal that is just a little thin
  13. 24. The brightest lights on Broadway

Down

  1. 2. A heavy metal that takes the front position
  2. 3. Kitchen basin metal for the galvanized
  3. 4. A gas that is a hero's undoing
  4. 5. The number one water generator
  5. 6. K, I will just have a banana
  6. 10. Life's backbone found in a diamond or a pencil
  7. 11. A radioactive series that sounds like a theatrical performance
  8. 12. Named for a cold dwarf, it fuels a heavy reaction
  9. 13. Stibnite's gift that sounds like it's against cash
  10. 15. Blue hue found in a mischievous sprite and a lightning bolt
  11. 19. A stranger among the noble gases

Periodic Table

Medium · 11×11 · 14 words
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  1. 2. Five-cent element often used in stainless steel
  2. 5. Element number five used in heat-resistant glassware
  3. 6. Colorless, odorless radioactive gas that can leak into basements
  4. 9. Strong, light metal used in aerospace and joint replacements
  5. 12. Metallic element found at the core of the Earth and your blood
  6. 13. Noble gas that gives Times Square its glow
  7. 14. Metal used to coat cans, symbolized by Sn

Down

  1. 1. Transition metal known for its deep blue pigment
  2. 3. Dense metal once used in pipes and paint, now in batteries
  3. 4. Heavy element named after the seventh planet
  4. 7. Lightweight metal used for foil and soda cans
  5. 8. The backbone of life and the primary component of diamonds
  6. 10. Halogen used as an antiseptic that turns starch purple
  7. 11. The standard of currency for millennia with symbol Au

Periodic Table

Easy · 7×7 · 7 words
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  1. 2. Metal used to coat food cans
  2. 4. Short name for the metal used in foil
  3. 5. Gas in the air that we breathe
  4. 7. Heavy gray metal used in weights

Down

  1. 1. Invisible radioactive gas found in soil
  2. 3. Metal used to make steel
  3. 6. Shiny yellow precious metal
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