Grade 3 Science Alberta Earth Systems

The outermost layer of Earth where natural changes occur over time.

• Rivers
• Soil
• Earth’s Surface
• Erosion

Large landforms that rise prominently above their surroundings.

• Erosion
• Mountains
• Lakes
• Glaciers

Large streams of water that flow across the land.

• Fossils
• Earth’s Surface
• Rivers
• Landslides

Large bodies of water surrounded by land.

• Lakes
• Deposition
• Fossils
• Erosion

Large bodies of saltwater.

• Deposition
• Earthquakes
• Lakes
• Seas

Large masses of ice that move slowly over land.

• Glaciers
• Erosion
• Deposition
• Earthquakes

Sudden and violent releases of lava, ash, and gases from a volcano.

• Deposition
• Paleontologist
• Volcanic Eruptions
• Earth’s Surface

Sudden shaking of the ground caused by the movement of the Earth's crust.

• Landslides
• Erosion
• Lakes
• Earthquakes

The movement of rock, earth, or debris down a slope.

• Fossils
• Landslides
• Earthquakes
• Seas

Large sea waves caused by underwater earthquakes or volcanic eruptions.

• Volcanic Eruptions
• Earth’s Surface
• Tsunamis
• Deposition