Newfoundland & Labrador · Grade 12

Earth Systems 3209

Newfoundland & Labrador’s Grade 12 science course, from Introduction to Earth Science to Earth Resources: Real-Life Applications.

Units
5
Lessons
16
Skills
41
Provincial exam
15% of the final mark

Unit by unit

Every skill in the course, numbered by unit.

Unit 1 · 3 skills

Introduction to Earth Science

The formation of the solar system and Earth

Earth as a dynamic, sphere-organized planet

  • A dynamic Earth and its spheres

    I can explain that Earth is a dynamic planet and that its processes operate within interacting spheres.

The official wording · 3 outcomes
1.1
Describe the four stages of the nebular hypothesis that led to the formation our solar system
1.2
Describe the formation and segregation of Earth layers
1.3
Identify that Earth is a dynamic planet

Key ideas

  1. The nebular hypothesis explains solar system formation from a collapsing cloud of gas and dust (a nebula).

  2. Earth is dynamic — its surface and interior are constantly changing through internal and external processes.

  3. Stage 1: a nebula contracts under gravity, spinning and flattening into a disk.

  4. Earth processes operate within four interacting spheres: geosphere, hydrosphere, atmosphere, and biosphere.

  5. Stage 2: the centre heats and forms the proto-Sun; Stage 3: dust grains collide and accrete into planetesimals.

Watch out for

  • That the planets formed before the Sun — the Sun and planets formed together from the same nebula.
  • That Earth's surface is essentially unchanging over a human lifetime scale — it is constantly, if slowly, reshaped.
  • That the solar system formed from an explosion — it formed from gravitational collapse and accretion.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 2 · 10 skills

Historical Geology

Uniformitarianism and relative time

  • Uniformitarianism

    I can define uniformitarianism and distinguish absolute from relative time.

  • Principles of relative dating

    I can apply the principles used to establish relative time and interpret geological cross-sections.

  • Interpreting geological cross-sections

    I can construct and interpret geological cross-sections to reconstruct the sequence of events in an area.

Absolute time, dating, and fossils

  • Theories of Earth's internal structure

    I can describe how we infer Earth's internal structure and evaluate the limits of that understanding.

  • Radiometric dating and absolute time

    I can explain how radioactive half-lives are used to estimate absolute ages.

  • Fossils and fossilization

    I can define a fossil, describe the conditions for fossilization, and describe how different fossil types form.

  • Using fossils and evidence of change

    I can describe how fossils are used to distinguish geologic time and how evidence shows Earth has changed over time.

The geologic time scale

  • Divisions of the geologic time scale

    I can describe how the geologic time scale is divided and why Precambrian time is the largest part.

  • Eras and their dominant life forms

    I can distinguish the Phanerozoic eras and list the dominant life forms of each.

  • Evidence that Earth has changed over time

    I can describe geological evidence that life, climate, continents, and the crust have changed over time.

The official wording · 10 outcomes
2.1
Define uniformitarianism
2.2
Demonstrate an understanding of the principles and laws used to establish relative time
2.3
Construct and interpret cross-sectional diagrams of Earth using geological concepts
2.4
Describe theories and evaluate the limits of our understanding of Earth’s internal structure
2.5
Explain how the half-lives of radioactive elements are used in estimating ages of materials
2.6
Define fossil
2.7
Describe how fossils are used to distinguish geologic time
2.8
Identify that the geologic time scale is divided into eons, eras, periods, and epochs
2.9
Distinguish between Precambrian time and the Paleozoic, Mesozoic, and Cenozoic eras
2.10
Describe geological evidence that suggests life forms, climate, continental positions, and Earth’s crust have changed over time

Key ideas

  1. Uniformitarianism: the geologic processes we see today operated in the same way in the past — 'the present is the key to the past'.

  2. We cannot sample Earth's deep interior directly — we infer it indirectly.

  3. The geologic time scale is divided, largest to smallest, into eons, eras, periods, and epochs.

  4. It implies Earth is very old, since slow processes need vast time to produce what we see.

  5. Seismic waves change speed and path at boundaries, revealing the layers.

Watch out for

  • That uniformitarianism means the rate of every process is constant — it means the same kinds of processes operate, not always at the same rate.
  • That we have directly observed Earth's core — we infer it from indirect evidence like seismic waves.
  • That the divisions are of equal length — they vary hugely, and Precambrian is by far the longest.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 3 · 14 skills

Earth Materials

Mineral chemistry

  • Atoms, compounds, and mineral chemistry

    I can define mineral chemistry terms and describe how atoms combine to form compounds.

  • Abundance of crustal elements

    I can outline the elements that make up Earth's crust and relate their abundance to the mineral groups.

Minerals and their identification

Igneous rocks

  • Igneous rocks: composition

    I can classify igneous rocks by mineral composition and distinguish mafic from felsic.

  • Igneous texture and Bowen's series

    I can relate igneous texture to cooling rate and use Bowen's reaction series to explain crystallization order.

  • Identifying igneous rocks and kimberlite

    I can identify igneous rocks from composition and texture and describe how kimberlite relates to diamonds.

Sedimentary rocks

  • Formation and classes of sedimentary rocks

    I can describe how sedimentary rocks form and name their main classes.

  • Clastic sedimentary rocks

    I can identify clastic sedimentary rocks and relate their grain size and sorting to the current that deposited them.

  • Chemical and biochemical sedimentary rocks

    I can identify chemical and biochemical sedimentary rocks and describe their environments, including coal formation.

Metamorphic rocks and the rock cycle

The official wording · 14 outcomes
3.1
Define mineral chemistry terms
3.2
Outline the abundance of the elements that comprise Earth’s crust
3.3
Define a mineral
3.4
Describe the arrangement of silicon and oxygen within a tetrahedron
3.5
Describe the mineral properties that are used for identifying minerals
3.6
Differentiate between rocks and minerals
3.7
Recognize that igneous rocks are classified according to their mineral composition and texture
3.8
Describe how cooling rate and mineral composition determine rock types based on Bowen’s reaction series
3.9
Identify igneous rocks based on mineral composition and texture
3.10
Describe the origin and process of formation of sedimentary rocks
3.11
Identify clastic sedimentary rocks
3.12
Identify chemical sedimentary rocks
3.13
Describe the process of metamorphism
3.14
Contrast the two types of metamorphism

Key ideas

  1. Minerals are chemical compounds — atoms bonded in fixed ratios.

  2. A mineral is a naturally occurring, inorganic solid with a definite chemical composition and an ordered crystal structure.

  3. Igneous rocks form from cooled magma (intrusive) or lava (extrusive) and are classified by composition and texture.

  4. Sedimentary rocks form by weathering, erosion, transport, deposition, and lithification (compaction and cementation).

  5. Metamorphism changes an existing rock through heat and pressure without melting it.

Watch out for

  • That minerals are just 'rocks' with no fixed composition — a mineral has a definite chemical formula.
  • That anything solid and natural is a mineral — it must be inorganic with an ordered structure and definite composition.
  • That colour alone identifies composition perfectly — it correlates with silica content but must be checked.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 4 · 9 skills

The Forces within Earth

Plate tectonics and its evidence

  • Plate boundaries and rift valleys

    I can describe the three types of plate boundaries with examples and explain how a rift valley becomes a divergent boundary.

  • Evidence for plate tectonics

    I can analyse the evidence for plate tectonics theory.

Crustal deformation: folds and faults

Earthquakes and seismic waves

  • Earthquakes and plate boundaries

    I can define earthquake terminology and relate earthquake locations to plate boundaries.

  • Seismic waves and measuring earthquakes

    I can describe seismic waves, how they are recorded, and how earthquakes are measured.

  • Earthquake scales

    I can distinguish earthquake scales and explain how Richter amplitude and energy change per unit.

Volcanism and sphere interactions

  • Volcanoes and eruptions

    I can distinguish volcano types and eruption styles and relate them to magma chemistry and plate setting.

  • Hotspots and sphere interactions

    I can describe hotspot volcanism, lava plateaus, and the interactions among the hydrosphere, lithosphere, and atmosphere.

The official wording · 9 outcomes
4.1
Describe and give examples of convergent, divergent and transform plate boundaries
4.2
Analyse evidence for plate tectonics theory
4.3
Define terminology related to crustal deformation
4.4
Define and relate faulting to the factors that affect deformation
4.5
Define earthquake and related terminology
4.6
Describe properties of the different seismic waves
4.7
Distinguish between earthquake scales
4.8
Distinguish between the types of volcanoes and describe factors affecting the nature of volcanic eruptions
4.9
Describe intraplate volcanism as it relates to hotspots

Key ideas

  1. Divergent boundaries: plates move apart, new crust forms (mid-ocean ridges).

  2. Stress is force per area applied to rock; strain is the resulting deformation.

  3. An earthquake is the release of stored strain energy as the crust suddenly slips along a fault.

  4. Magma viscosity (set by silica content and gas) controls eruption style — runny mafic lava erupts gently; sticky felsic magma erupts explosively.

  5. Convergent boundaries: plates collide — oceanic-continental, oceanic-oceanic, or continental-continental.

Watch out for

  • That the continents plow through the ocean floor — plates (crust + upper mantle) move as units.
  • That all rock either bends or breaks the same way — behaviour depends on temperature, pressure, and rate.
  • That the epicentre is where the earthquake starts — the focus underground is; the epicentre is above it.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 5 · 5 skills

Earth Resources: Real-Life Applications

Mineral resources and ore

  • Minerals, exploration, and ore processing

    I can describe the importance of minerals, how extraction has evolved, and how ore is processed.

  • Processing ore materials

    I can describe the processes and techniques used to process ore materials into usable resources.

Petroleum geology

  • Petroleum formation and kerogen

    I can describe how petroleum forms from organic matter, including the role of kerogen.

  • Petroleum traps and reservoirs

    I can describe petroleum traps, their types, and how petroleum distributes in a reservoir.

  • Extracting and refining petroleum

    I can describe how petroleum is extracted and refined and identify factors in developing resources sustainably.

The official wording · 5 outcomes
5.1
Describe the importance of minerals and mineral exploration at the local, provincial, national and global levels
5.2
Describe the processes and techniques involved in processing ore materials
5.3
Describe the origin and the process of formation of petroleum
5.4
Describe the components involved in the formation of petroleum traps
5.5
Describe the two main means of extracting petroleum from Earth

Key ideas

  1. Ore is rock containing a mineral in concentrations worth mining.

  2. Petroleum forms from the remains of marine microorganisms buried in fine sediment.

  3. Mineral exploration finds economic deposits; extraction methods have advanced from simple digging to large-scale, technology-driven mining.

  4. Kerogen is the solid organic matter in source rock that converts to oil and gas with heat and pressure.

  5. Ore processing separates the valuable mineral from waste rock (crushing, concentrating, smelting).

Watch out for

  • That any rock with metal in it is ore — it is ore only if the concentration makes mining worthwhile.
  • That oil comes from dead dinosaurs — it forms mainly from buried marine microorganisms.
  • That mining only affects the lithosphere — it also affects water and air.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

The mark you need

Your class mark counts for 85% of the final mark, the exam for 15%.

You need

42% on the exam

With 75% in class, your final mark lands between 63.8% (0 on the exam) and 78.8% (100% on it).

The official curriculum

This page follows Newfoundland & Labrador’s own curriculum for Earth Systems 3209.

Study it in MapleMind

MapleMind teaches Earth Systems 3209 one skill at a time. Each skill gets a short lesson, practice as you go and a check worth up to three stars. It remembers where you stopped.

Mathematics 2201 (Academic) in the MapleMind app on a tablet: its units, Unit 1 open, and the skills done so far with their starsMathematics 2201 (Academic) in the MapleMind app on a phone: its units, Unit 1 open, and the skills done so far with their stars
Pictured: Mathematics 2201 (Academic), another Newfoundland & Labrador course, partway through Unit 1.

Practise it

Course Companion

Your year in one workbook

A fun way to keep Earth Systems 3209 organized, get to know your child better and see early when they need a hand. Fill it in on a screen, or print it.

Pages
34
Fillable fields
1,637
Price
$4.99
See the Course Companion

Questions about Earth Systems 3209

What is Earth Systems 3209?

Newfoundland & Labrador’s Grade 12 science course: 5 units and 41 skills, from Introduction to Earth Science to Earth Resources: Real-Life Applications.

What units are in Earth Systems 3209?

1. Introduction to Earth Science, 2. Historical Geology, 3. Earth Materials, 4. The Forces within Earth and 5. Earth Resources: Real-Life Applications.

Is there a provincial exam for Earth Systems 3209?

Yes. The Earth Systems 3209 Public Exam counts for 15% of the final mark. Next sitting: January 25, 2027.

Can MapleMind help with Earth Systems 3209?

Yes. MapleMind teaches every skill of Earth Systems 3209, step by step, with practice and checks, and its tutor answers questions about any of them. It’s free with daily limits, on iPhone, Android and the web.

Get ready for Earth Systems 3209

Practise every skill of Earth Systems 3209 in MapleMind, free with daily limits.