Show:
Landforms
Rocks
Soil
Weathering
Fossils
100
Name one thing that plants get from soil?
water, support, nutrients
100
What are rocks?
the hard, solid parts of Earth
100
Solid matter found in nature is called a ______?
a mineral
100
What is weathering?
the breaking apart of rocks into smaller pieces
100
What is a fossil?
a print or part of a plant or animal that lived long ago
200
What is a bay?
A bay is part of an ocean or lake. It forms when the water covers a low place on the shore.
200
Are rocks living or non-living?
non-living
200
What is soil?
Bits of rock mixed with dead plants parts.
200
What are two things that cause weathering?
water, wind, ice, rust
200
Why do scientists study fossils?
to learn about plants and animals of long ago
300
A shaking of the earth's surface is called?
an earthquake
300
What are rocks made up of?
minerals
300
What kind of soil is made up of dead plant parts and other things that were once living?
humus
300
What is a delta?
A delta is a flat triangle of land that may form where a river meets a larger body of water.
300
Why do scientists study fossils of dinosaur teeth?
to find out what kind of food dinosaurs ate
400
What can lava form?
An island
400
Name one property of a mineral?
hardness, color
400
Name three kinds of soil.
sand, humus, clay, silt
400
Name an important landform in Arizona that was created by weathering.
the Grand Canyon
400
Describe how an animal becomes a fossil.
1. an animal dies 2. the dead animal is covered in sand and mud 3. the sand and mud harden into a rock
500
What is it called when wind and water move sand or small rocks?
erosion
500
Put the following rocks into order from largest to smallest size: small rocks, boulders, sand, large rocks, gravel
boulders, large rocks, small rocks, gravel, sand
500
What kind of soil does not hold water well.
sandy soil
500
Describe how rust can weather rocks.
1. some rocks have iron in them 2. the iron gets wet and mixes with air 3. rust forms and weakens the rock 4. the rock breaks apart
500
How do scientists learn about extinct animals?
They compare fossils with animals that live today.