Grades 4-6 [Now Aligned with the 2008 Curriculum Changes]
| Life Systems | Structures and Mechanisms | Matter and Energy | Earth and Space Systems | |
| Grade 4 (multiple strands) |
Habitats and Communities | Pulleys and Gears | Light and Sound | Rocks and Minerals |
| Grade 5 (multiple strands) |
Human Organ Systems | Forces Acting on Structures and Mechanisms | Properties of and Changes in Matter | Conservation of Energy and Resources |
| Grade 6 (multiple strands) |
Biodiversity | Flight | Electricity and Electrical Devices | Space |
Strand Chart source: Ontario Curriculum, Grades 1-8: Science and Technology, 2007
( available at the Ministry of Education website )