Soil
An earthworm is an example of a
Decomposer
Our science investigation measured the amount of _____ held by soil.
a. nutrients
b. moisture
c. air
d. organic matter
Answer is b. moisture
What are the 4 components of Soil?
Water, Organic Matter, Minerals/Rocks and Air.
This is the type of soil that contains decomposed plants and animals.
Humus
True or false: all soil has the same texture
False - all soil types feel different
A nonorganic material that eroded over a long period of time to form soil.
Rocks
Without decomposers our planet would be full of this.
Waste!
Soil texture means this.
The way the soil FEELS.
True or False - air and sunlight can be broken down by decomposers.
False - only plants and animals can be broken down by decomposers.
This is when wind, water, or ice slowly carry soil, sand, or rocks from one place to another.
Erosion
contains decomposed plant and animal matter
humus
Worms, bacteria, and fungus are all examples of
Decomposers - they break down dead plants and animals
True or false - soil helps the roots of plants get sunlight.
False - soil helps the roots of plants grow upright
This soil is found near rivers and is powdery when dry.
silt
True or False - soil gets its nutrients from the sun.
False - soil gets nutrients from decomposers
This type of soil will INCREASE drainage.
Sand - large particles in sand allow water to pass through easily.
the smallest rock particle found in soil, feels sticky when wet.
clay
materials that plants get from the soil to grow and develop are called _________________.
Nutrients
True or false - all types of soils are made from the same material.
False - soils are made from DIFFERENT types of material