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Grades 10-12 (Secondary IV, V) Resources

  • Use Tomatosphere™ to develop key cross-curricular concepts and skills of inquiry
  • Extend student learning beyond the Seed Investigation

Conducting the Seed Investigation

Seed Investigation - Step-by-step Guide

Example Scenario

One way to kick off the Tomatosphere™ Seed Investigation is by presenting students with a fictional scenario that provides an explanation as to why some tomato seeds might have been exposed to space or space-like conditions.

What could happen to the tomato seeds?

Flesch-Kincaid reading ease score = 63, reading level = grade 8.5

An Orion spacecraft with astronauts aboard is heading to Mars. On the outside of the spacecraft are several storage units for supplies and other important equipment. The stowage units are sealed and have pressure and temperature conditions similar to those inside the spacecraft.

The astronauts suddenly hear an alarm...

Full Scenario:

pdf doc
Students with Germination Chart


The Tomatosphere™ Seed Investigation provides many opportunities for students to develop inquiry skills. Below are some quick links to ready-to-use templates that students can use when they participate in the Seed Investigation. More templates, as well as Learning Strategies and Skill Look-Fors can be found in the Inquiry Section.

Skill: Planning

Skill: Predicting

Skill: Observing

Skill: Using Appropriate Vocabulary

Skill: Displaying Data

Students with Tomato Plant

Extending the Seed Investigation

Inquiry Guide

Suggested Questions for Investigation with Tomatosphere™ Plants

  • Are there any differences in growth and vigour between the plants from the two seed treatments?
  • How does the quantity of water affect plant growth?
  • How does the application of fertilizer affect plant growth?
  • How does the duration of light affect the time for tomato fruit to reach maturity?
  • How do different types of light (e.g., natural light, fluorescent light bulbs, black light, etc.) affect plant growth?

Reinforcing Key Concepts


Grade 10
(Sec. IV)

Grade 11

Grade 12

Cycling of Energy and Matter in Ecosystems

Grade 10, Sec. IV

Introduction to Photosynthesis

Grade 10, Sec. IV

Plant Tissue Structure and Function

Grade 10, Sec. IV

Plant Processes

Grade 10, Sec. IV

Seed Germination

Grade 11 (Sec. V)

Physical Characteristics of Mars

Grade 12

Space Plant Research

Grade 12

Teacher Resources

External Resources