Across
- 3. This element is an excellent electrical conductor and is used in wires and coins.
- 4. This element is used to make computer chips and solar panels.
- 7. This yellow element has a strong smell and is released from volcanoes.
- 8. This is the lightest element in the universe and a major component of water.
- 9. This element reacts violently with water and is part of table salt.
- 11. This element glows brightly in signs when electricity passes through it.
- 14. This element is used in balloons because it is lighter than air and does not react.
- 15. This element burns with a bright white flame and is used in fireworks.
Down
- 1. This element glows in the dark and is used in matches and fertilizers.
- 2. This element is found in all living organisms and forms the basis of organic chemistry.
- 5. This strong metal is used to make buildings, bridges, and blood contains it for oxygen transport.
- 6. This element is lightweight, doesn’t rust easily, and is used in cans and airplanes.
- 10. This element allows animals to breathe and is produced by plants during photosynthesis.
- 12. This element makes up about 78% of Earth’s atmosphere and is essential for proteins.
- 13. This element is used to disinfect swimming pools and kill bacteria.