Grade 7 Science
9 units matched to the Saskatchewan Curriculum.
Strands and outcomes
- Life Science: Interactions within Ecosystems (IE7.1–IE7.4): Relate key aspects of Indigenous knowledge to their understanding of ecosystems. Observe, illustrate, and analyze living organisms within local ecosystems as part of interconnected food webs… Evaluate biogeochemical cycles (water, carbon, and nitrogen) as representations of energy flow and the cycling of… (and 1 more outcome)
- Physical Science: Mixtures and Solutions (MS7.1–MS7.3): Distinguish between pure substances and mixtures (mechanical mixtures and solutions) using the particle model of… Investigate methods of separating the components of mechanical mixtures and solutions, and analyze the impact of… Investigate the properties and applications of solutions, including solubility and concentration.
- Physical Science: Heat and Temperature (HT7.1–HT7.3): Assess the impact of past and current heating and cooling technologies related to food, clothing, and shelter on… Explain how understanding differences between states of matter and the effect of heat on changes in state provide… Investigate principles and applications of heat transfer via the processes of conduction, convection, and…
- Earth and Space Science: Earth's Crust and Resources (EC7.1–EC7.3): Analyze societal and environmental impacts of historical and current catastrophic geological events, and… Identify locations and processes used to extract Earth's geological resources and examine the impacts of those… Investigate the characteristics and formation of the surface geology of Saskatchewan, including soil, and identify…
Units
Unit 1
Ecosystems
Biotic and abiotic parts of an ecosystem, how they interact, and the limiting factors and carrying capacity that decide how many organisms an ecosystem can support.
Outcome: IE7.2 · living things in ecosystems as food webs, populations and communities
Unit 2
Food Chains & Energy
Producers, consumers and decomposers, food chains and webs, how energy shrinks as it passes up a chain (about 10% each step), and what happens when part of a chain changes.
Outcome: IE7.2, IE7.3 · food chains and the flow of energy in ecosystems
Unit 3
Cycles & Succession
How water, carbon and nitrogen are cycled through ecosystems, why cycling supports sustainability, and the difference between primary and secondary succession.
Outcome: IE7.3 · water, carbon and nitrogen cycles, and how ecosystems change
Unit 4
People & Ecosystems
How agriculture, harvesting and technologies affect ecosystems, such as monoculture, overfishing, invasive species and runoff, and ways to protect and restore balance. Includes reading simple data about an environmental measure.
Outcome: IE7.4 · how ecosystems respond to natural and human influences
Unit 5
Particles & Mixtures
The particle theory of matter, the states of matter, pure substances versus mixtures, and homogeneous versus heterogeneous mixtures.
Outcome: MS7.1 · pure substances and mixtures using the particle model
Unit 6
Solutions & Separating
Solutes, solvents and solubility, what makes things dissolve faster, saturated and unsaturated solutions, concentration, why water is called the universal solvent, ways to separate mixtures, and some environmental effects of industrial separation.
Outcome: MS7.2, MS7.3 · separating mixtures, and solubility and concentration
Unit 7
Heat & Particles
Heat as energy linked to particle motion, temperature, expansion and contraction, changes of state, and the ways heat is generated (friction, electricity, burning, chemical reactions and the Sun).
Outcome: HT7.2 · states of matter and the effect of heat on the particle model
Unit 8
Moving Heat
How heat is transmitted by conduction, convection and radiation, how the Sun's radiation heats different surfaces, and technologies such as insulation and double-pane windows that reduce heat loss.
Outcome: HT7.3 · conduction, convection and radiation
Unit 9
Restless Earth
Earth's layers, plate tectonics, earthquakes and volcanoes, fossils in rock layers, and the order of major events in Earth's 4.6-billion-year history. Includes how First Nations oral histories and scientific evidence together date the great 1700 earthquake.
Outcome: EC7.1 · earthquakes, volcanoes and the movement of Earth's crust
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