Homeschool → Canada → Grade 9 → Science
Grade 9 science
In Grade 9, students investigate how the nervous and endocrine systems help the body respond to change, and how matter and energy flow through ecosystems. They explore atomic structure, investigate acids and bases, explain Earth's features using plate tectonics and analyze how heat is transferred by conduction, convection and radiation. They collect and analyze data with attention to accuracy and repeated trials.
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Biological sciences
- The nervous system and reaction timeFull lesson · 60 minStudents learn how the nervous system detects and responds to stimuli, compare reflexes with voluntary responses, and measure their reaction time with a falling ruler.
- Ecosystems and the carbon cycleTopic outlineStudents trace how energy flows and matter cycles through ecosystems, including photosynthesis, respiration and decomposition in the carbon cycle.
Chemical sciences
- Atoms and isotopesTopic outlineStudents describe the structure of atoms in terms of protons, neutrons and electrons, define isotopes and learn about radioactive decay and its uses in medicine and dating.
- Acids and basesFull lesson · 60 minStudents use a homemade red cabbage indicator to classify household substances as acidic, neutral or basic, and investigate neutralisation.
Earth and space sciences
Physical sciences
Plan with these topics
Curriculum notes
Australian Curriculum v9.0. Topics are organized around the Australian Curriculum v9.0 Science strands and sub-strands. This is an independent learning resource; it is not endorsed by ACARA and has not been mapped to individual content descriptions.
These lessons were written around Australian Curriculum strands and matched to Canadian grades by age (Kindergarten is the year before Grade 1). They are not mapped to any province's curriculum, and some use Australian examples, so check them against your province's learning outcomes and your own plans.
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