Science Crossword Puzzle

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Across
  1. 2. The control center of the cell that contains DNA.
  2. 5. Animals with hair or fur that feed their babies milk.
  3. 8. Traits or skills learned or gained during life, like a scar.
  4. 9. membrane The outer layer of a cell that controls what goes in and out.
  5. 10. Animals that live in water, have gills, scales, and lay eggs.
  6. 11. Living things that make their food using sunlight.
  7. 15. Animals without a backbone.
  8. 16. A tool that helps you see tiny things, like cells.
  9. 17. Making something look larger than it really is.
  10. 22. Something that causes harm, like viruses that make us sick.
  11. 23. cell A cell in animals that doesn't have a cell wall or chloroplasts.
  12. 25. Behaviors animals are born with, like a bird building a nest.
  13. 27. Plants that grow from seeds, like flowers or trees.
  14. 28. Behaviors animals get from experience, like a dog learning tricks.
  15. 29. cell A cell in plants with a cell wall and chloroplasts for photosynthesis.
  16. 30. A jelly-like fluid inside the cell where parts are found.
  17. 32. Tiny living things you can only see with a microscope.
  18. 33. A stiff layer around plant cells that provides structure.
  19. 34. How living things act or respond to their environment.
Down
  1. 1. Helpful, like bacteria that help us digest food.
  2. 3. Animals with a backbone.
  3. 4. Animals that live in water and on land, like frogs.
  4. 6. Characteristics of a living thing, like eye color.
  5. 7. The part of plant cells that helps them make food using sunlight.
  6. 12. Animals with dry, scaly skin that lay eggs.
  7. 13. The smallest unit of life that makes up all living things.
  8. 14. Grouping living things based on their similarities.
  9. 18. Living things like mushrooms that absorb nutrients from other things.
  10. 19. Plants that grow from spores, like moss or ferns.
  11. 20. Tiny organisms that can be helpful or cause disease.
  12. 21. Tiny particles that cause sickness and need a host to survive.
  13. 24. Microorganisms like mold or yeast that grow on other things.
  14. 26. Traits passed from parents to offspring, like curly hair.
  15. 31. Animals with feathers, wings, and lay eggs.