Middle School Earth and Space Science Quiz
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EARTH AND HUMAN ACTIVITY
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A community garden is worried about wasting water during summer. A simple log shows sprinklers run every day, even after rain, and puddles form in low spots. The garden has a $300 limit and cannot use a phone app (some volunteers don't have smartphones). Multiple solutions are possible.
Design options:
A) Install a soil-moisture sensor that automatically shuts off watering when soil is already wet.
B) Replace all garden soil with new soil that never dries out.
C) Water only at noon every day because it is the hottest time.
D) Add more sprinklers so water reaches everywhere faster.
Criteria for success: reduce unnecessary watering within 1 month.
Constraints: $300 budget; no phone app required.
Which design best meets the criteria and constraints?
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