Show:
Glaciers
Soil
More Soil
A Handful of Dirt
Things that make you go Hmmm
100
Glacial erosion involves the glacier pulling rocks from the ground as it moves and then deposits those rocks as the glacier melts.
What is glacial plucking.
100
Soil is a ___________________ of rocks, minerals, organic matter, air and water.
What is mixture.
100
Causes soil to have a reddish color.
What is iron.
100
Without soil . . .
What is there would be no life on Earth.
100
Eats its own weight in soil everyday.
What is an earthworm.
200
A large mass of ice that moves slowly over land.
What is a glacier.
200
What kind of soil is a mixture of other kinds of soil?
What is loam.
200
Solid layer of rock beneath the soil.
What is bedrock.
200
Are more abundant and varies than the species of the tropical rain forests and the coral reefs of the South Seas combined.
What are creatures living in the soil.
200
An earthworm's waste . . .
What is add nitrogen to the soil.
300
Is the result of the scraping of rocks that are imbedded in the ice of the glacier against the rock bed beneath the glacier.
What is abrasion.
300
Decayed organic matter from once-living plants and animals.
What is humus.
300
Forms as rock is broken down by weathering and mixes with other materials on the surface.
What is soil.
300
Feed on bacteria.
What is a nematode.
300
Created the Great Lakes of Michigan.
What are glaciers.
400
The two processes by which glaciers erode the land.
What is abrasion and plucking.
400
Soil that has the smallest particles.
What is clay.
400
Three types of weathered rock particles found in soil.
What is sand, silt and clay.
400
Made naturally in forests and grasslands from dead leaves, roots, and stems, but you can make your own in your backyard.
What is compost.
400
The soil would be unable to grow anything without these.
What are micro-organisms.
500
When a glacier melts, it deposits the sediment it eroded from the land creating these.
What are landforms.
500
Fungi, protists, bacteria, and worms.
What are decomposers.
500
Gravel, sand, silt, and clay.
What are soil particles arranged in order from largest to smallest.
500
It is everywhere, both i far-off places and right under your feet.
What is soil.
500
May provide food and shelter for a million ants, two hundred thousand mites, and four thousand worms.
What is an acre of land.