Across
- 3. Vaccine for some of the most contagious diseases
- 6. Simplified irrigation system for crops
- 8. Engineers that manufactures heat and air conditioning.
Down
- 1. Strive to find solutions for environmental issues like pollution
- 2. These engineers design and draw blueprints. Rhymes with craft.
- 4. These engineers study the Earth's natural resources and environment
- 5. _____ engineers makes it possible to fly safe in the skies. Rhymes with might.
- 7. _____ engineers plan and build construction projects. Rhymes with giggle.