Across
- 3. the command center of the cell
- 4. the diffusion of water
- 6. the smallest unit of elemental matter
- 11. atoms of the same element that have the same number of protons, but a different number of neutrons
- 13. a particle that has a positive charge
- 15. a particle with a negative charge
- 18. organelle that performs photosynthesis
- 19. The main ingredient in any cell
- 20. atoms of the same element that have the same number of protons, but a different number of electrons
- 23. are ductile, conduct heat and electricity, have luster, and are malleable
- 24. the place where most photosynthesis happens
- 25. a chart of the elements arranged into rows and columns
Down
- 1. tells you the number of protons in the nucleus of an atom of that element
- 2. a row on the periodic table
- 5. have physical and chemical properties of both metals and nonmetals
- 7. the hole gases use to move in and out of the leaf
- 8. shows an element’s chemical symbol, atomic number, and atomic mass
- 9. organelle that performs cellular respiration
- 10. a column on the periodic table
- 12. an electrically neutral particle
- 14. have three jobs 1. anchor a plant in the soil 2. absorb food and water 3. store food and water
- 16. have no metallic properties
- 17. vascular tissue that moves glucose
- 21. molecule with a positive end and a negative end
- 22. vascular tissue that moves water