Kids Science Crosswords

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Across
  1. 7. Which cell organelle is also called powerhouse of the cell?
  2. 8. What is the name of the process used by plants to convert sunlight into food?
  3. 10. Bacterial infections in humans can be treated with what?
  4. 12. Yeast is a type of?
  5. 13. Animals that eat both plants and other animals are known as what?
  6. 15. Name of the substance that gives skin and hair its pigment?
  7. 17. ____ helps pump blood through the entire body?
  8. 19. A single piece of coiled DNA is known as a?
  9. 21. human body’s biggest organ?
  10. 22. first element on the periodic table?
Down
  1. 1. the death of every member of a particular species is known as what?
  2. 2. The wire inside an electric bulb is known as the what?
  3. 3. Which system of the body controls the senses?
  4. 4. Botany is the study of?
  5. 5. Another name for your voice box is the?
  6. 6. A change of the DNA in an organism that results in a new trait is known as a?
  7. 9. The standard unit of measurement for energy is?
  8. 11. this shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation
  9. 14. H20 more commonly known as?
  10. 16. center of an atom called?
  11. 18. Electric current is measured using what device?
  12. 20. Fruit preserves made from citrus fruits, sugar and water are known as what?