Houghton Mifflin Science Grade 4 Chapter 8 - Earth

A dense ball with a liquid outer part and solid inner part

• Crust

• Mantle

• Core

The slow wearing away of rock into smaller pieces.

• Deposition

• Weathering

• Erosion

The outer layer of the Earth.

• Core

• Crust

• Mantle

Rock that forms when sediment settles and is glued together by minerals.

• Metamorphic Rock

• Sedimentary Rock

• Igneous Rock

The dropping of sediment moved by Wind, Water or ice.

• Weathering

• Erosion

• Deposition

The movement of rock material from one place to another.

• Weathering

• Erosion

• Depostition

Sand, particles of rock , bits of soil and the remains of once living things.

• Rock Cycle

• Mantle

• Sediment

Rock that forms when melted rock cools and hardens.

• Metamorphic Rock

• Sedimentary Rock

• Igneous Rock

Molten Rock that reaches the Earth's surface.

• Mineral

• Magma

• Lava

A series of changes that rocks go through over time.

• Mineral

• Rock Cycle

• Rock