
Formation of soil
Presentation
•
Science
•
3rd Grade
•
Practice Problem
•
Medium
+3
Standards-aligned
Ana Reyna
Used 68+ times
FREE Resource
2 Slides • 19 Questions
1
Formation of soil
3.7A
2
Student Expectation
The student is expected to explore and record how soils are formed by weathering of rock and the decomposition of plant and animal remains.
Students you will allowed to use your yellow science book: STEMscopedia
Background & Parent Connection
3
Multiple Choice
Rocks near the ocean get broken into smaller pieces. What causes this change to these rocks?
Leaves falling from trees
Clouds forming in the sky
Water crashing against the rocks
Salt dissolving in the water
4
Multiple Choice
Which of the following processes will most likely contribute to the development of soil?
Volcanic eruptions
Building up of snow in very cold areas
Migration of animals to warmer climates
Breaking down of rock by wind, water, and ice
5
Multiple Choice
Which of the following locations would most likely produce soil with the greatest amount of organic matter?
A desert with very high temperatures
A prairie with lots of grasses and flowers
A mountain with extremely cold winds
A river with quickly moving water
6
Multiple Choice
Soil is composed of all of these natural materials EXCEPT-
weathered rock
plant matter
plastic substances
animal remains
7
Multiple Choice
Rock is broken into smaller and smaller pieces over time by all of the following forces EXCEPT-
Flowing water
Blowing wind
Cooling sand
Moving ice
8
Multiple Choice
One component of soil is decayed plant and animal remains, but the major component of soil is
Fossil fuels
Weathered rocks
Iron ore
Salt water
9
Multiple Choice
All of the following are plant remains EXCEPT-
Dead leaves
Dried twigs
Sand particles
Seed covers
10
Multiple Choice
Plants and animals become part of soil when they
Die and decay
Produce offspring
Grow and develop
Take in nutrients
11
Multiple Choice
The weathering of rocks into small pieces forms what natural resource?
Minerals
Water
Coal
Soil
12
Multiple Choice
How would the soil be different in an area that gets very little rainfall? The soil would contain
much smaller pieces of rock
many insects and worms
a greater variety of plants
less water and organic matter
13
Multiple Choice
How do plants contribute to the formation of soil? Plants
cover the soil and shade it from sunlight.
die, decompose and become part of the soil.
use soil to grow and develop over time.
support the animal life in the soil.
14
Multiple Choice
A student made a mixture of sand, tiny rocks, small twigs, and some leaves. This student has modeled
how rocks change over time.
life cycle of plants.
the formation of soil.
how landforms are created.
15
Multiple Select
Is dirt all the same?
no
yes
16
Fill in the Blanks
The process of breaking down Earth's rocks into smaller and smaller pieces is called
Type answer...
17
Multiple Select
Weathering can happen in different ways. It can happen by physical and chemical changes.
True
False
18
Fill in the Blanks
When animals and plants
Type answer...
19
Multiple Select
Rock is weathered into different size soil particles.
False
True
20
Multiple Select
Soil types are the same in all areas.
False
True
21
Fill in the Blanks
Different soils have different ______ and ______ and they are made up different minerals.
Type answer...
Formation of soil
3.7A
Show answer
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