Grades 1-3 [Now Aligned with the 2008 Curriculum Changes]
| Life Systems | Structures and Mechanisms | Matter and Energy | Earth and Space Systems | |
| Grade 1 (multiple strands) |
Needs and Characteristics of Living Things | Materials,Objects, and Everyday Structures | Energy in Our Lives | Daily and Seasonal Cycles |
| Grade 2 (multiple strands) |
Growth and Changes in Animals | Movement | Properties of Liquids and Solids | Air and Water in the Environment |
| Grade 3 (multiple strands) |
Growth and Changes in Plants | Strong and Stable Structures | Forces Causing Movement | Soils in the Environment |
Strand Chart source: Ontario Curriculum, Grades 1-8: Science and Technology, 2007
( available at the Ministry of Education website )