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Sprout & Fin · Worksheet
Lesson 15 · Grades 3–8

Project: grow lettuce in a jar

Name Date

Label the picture. Write the name next to each letter.

  • A · lettuce seedling
  • B · net pot
  • C · roots
  • D · plant water
  • E · air gap

Answer in your own words.

  1. This jar has no pump. Where do the top roots get air?

  2. After two weeks, the water is lower. What do you do?

  3. Why do you wrap the jar in dark paper?

Draw or explain

Why might a system with no moving parts be a good one to build first?