Across
- 2. water that has been used at least once and can be used again
- 4. things your design needs to do
- 8. water that is too dirty to be used again
- 9. a series of steps completed in a certain order to solve a problem
- 10. someone who uses science to design tech that help provide people with clean and safe water
- 11. any thing or process designed by people to solve a problem
- 12. ways that your design is limited
Down
- 1. when people do not have enough water to complete all the tasks they need to live
- 3. a substance that makes water dirty or unsafe to drink
- 5. a place where it is difficult for people to survive
- 6. the characteristics that let us know if water is safe to use
- 7. the steps that engineers use to design technologies to solve a problem
- 9. water that is clean and safe enough to drink