Science Vocabulary

breaking down of rocks into smaller pieces known as sediment

• decomposers

• soil

• erosion

• weathering

organisms that break down dead plants and animals

• decomposers

• weathering

• deposition

• erosion

a mixture of small pieces of rock, water, air, and humus

• decomposers

• soil

• loam

• erosion

to keep inside

• retain

• loam

• humus

• erosion

a mixture of decomposed plants and animals in soil

• loam

• erosion

• humus

• soil

the carrying away of sediments by water, wind or ice

• erosion

• deposition

• weathering

• decomposers

the dropping of sediments in a new place

• deposition

• erosion

• humus

• weathering

a mixture of sand, silt and clay

• humus

• soil

• loam

• retain