Science

Grade 2

 

Unit 1

SOILS

(based on STC Kit)

 

INTRODUCTION

Soils can easily be described by their color, texture and capacity to retain water.  Understanding soils helps us to also understand how the growth of certain plants is supported or inhibited by where they grow and in what substance.  Soils support the growth of many kinds of plants, including those in our food supply.  Understanding the properties of soil enables us to better understand the environment in which we live.

 

 

SCIENCE STANDARDS AND INDICATORS

 

Content Standard 2.3:  Earth materials have varied physical properties which make them useful in different ways.

 

A21:  Sort different soils by properties, such as particle size, color and composition.

 

A22:  Relate the properties of different soils to their capacity to retain water and support the growth of certain plants.

 

SCIENCE INQUIRY: Scientific inquiry is a thoughtful and coordinated attempt to search out describe, explain and predict natural phenomena.

 

SCIENCE LITERACY: Science literacy includes speaking listening, presenting, interpreting, reading and writing about science.

 

SCIENCE NUMERACY: Mathematics provides useful tool for the description, analysis and presentation of scientific data and ideas.

 

EXPECTED PERFORMANCES

AINQ.2 Use senses and simple measuring tools to collect data

AINQ.4 Read, write and speak about observations of the natural world.

AINQ.9 Count, order and sort objects by their properties. 

 

BIG IDEA

Soil is made of three different things and supports plant life in different ways.

 

LINKS TO OTHER STANDARDS

LANGUAGE ARTS

1.2.b.  Interpret information that is implied in a text

1.3.d.  Develop vocabulary through listening, speaking, reading and writing.

3.2.d.  Research information from multiple sources for a specific purpose.

 

Key Vocabulary:  soil, silt, clay, particles, properties, organic, textures, habitat, compost

 

ESSENTIAL KNOWLEDGE:

 

CONCEPTS

 

SKILLS:

·       Performing simple tests to describe and identify soil components.

·       Observing, recording, and organizing test results.

·       Interpreting test results to draw conclusions about soil components.

·       Reflecting on test results to predict how plants will grow in different so

·       Assembling laboratory materials for soil experiments.

·       Communicating results and ideas through writing, drawing and discussion.

·       Applying previously learned concepts and skills to analyze unfamiliar soil samples.

 

ESSENTIAL QUESTIONS TO GUIDE INSTRUCTION AND ASSESSMENT:

 

MATERIALS AND SUPPLIES

 

OBJECTIVES AND GOALS (as summarized from STC Kit, “Soils”)

 

LESSON ONE

What is in Soil?

 

LESSON TWO

Where do dead plants go?

 

LESSON THREE

Introducing Sand, Clay and Humus

 

LESSON FOUR

When Soils Get Wet

 

LESSON FIVE

More About Wet Soils

 

LESSON SIX

How Quickly Do Soils Settle in Water?

 

LESSON SEVEN

More Settling a Few Days Later

 

LESSON EIGHT

What is Your Mystery Mixture?

 

LESSON NINE

Growing Plants in Different Soils

 

LESSON TEN

Why Do Plants Have Roots in Soil?

 

LESSON ELEVEN

Can Soil Hold Water?

 

LESSON TWELVE

How Water Moves through Sand and Clay

 

LESSON THIRTEEN

Opening the Compost Bags

 

 

LESSON FOURTEEN

Exploring Your Local Soil

 

LESSON FIFTEEN

More About Your Local Soil

 

LESSON SIXTEEN

What is Your Local Soil?

·       Students compare and record plant growth in sand, clay humus and local soil.

·       Students complete their plant logbooks.

·       Students make a class chart to compare plant growth in the same kind of sample.

·       Students observe and discuss differences in seedlings grown in the same kind of sample.

·       Students summarize their investigation of local soil.

Students create a local soil book with their record sheets.

 

RESOURCES

Web Sites

·       http://soil.gsfc.nasa.gov/index.html

·       http://www.pedosphere.com/volume02/main.html

·       http://www.stormloader.com/geocoop/soils.htm

·       http://www.metla.fi/info/vlib/soils/old.htm

·       http://www.hintze-online.com/sos/soils-online.html

·       http://soil.gsfc.nasa.gov/env.htm

·       http://science.nasa.gov/headlines/y2006/28dec_truefake.htm

 

Literacy Books

·       Recycle: A Handbook for Kids by Gail Gibbons

·       City Green by Dyanne DiSalvo-Ryan (Illustrator)

·       Cactus Hotel by Brenda Z. Guiberson

·       Growing in the Garden: Outdoor Classrooms for Young Gardeners

·       Dirt Made My Lunch by Banana Slug String Band   

·       Secrets of the Soil by Peter Tompkins, Christopher Bird

·       Winter Wheat by Brenda Z. Guiberson, Megan Lloyd (Illustrator)

 

Extension Activities

·       Studying organisms that you may find in soil, Appendix B

·       Sand Paintings, Appendix C

 

Field trips

·       Edgerton Park Greenhouse

·       Local Farm

·       Local restaurant that uses a compost bin

 

Links to United Streaming – www.unitedstreaming.com

Getting to Know Soil (23:00)

Dr. Dad's PH3: Episode Eleven: Soil and Agriculture (14:52)

Geologist's Notebook: How to Make Mud Pie (11:00)

Worm Farm (01:02)

Rocks: The Solid Earth Materials #1 (20:00)