Skip to the content
Peabody TeachFor teachers and grown-ups

A Soil Scientist Reads the Layers Underground

6th grade nonfiction passage about soil scientist at a farm: 230 words, six questions, an answer key and vocabulary.

6th grade nonfiction soil scientist at a farm 230 words

A Soil Scientist Reads the Layers Underground

A farmer who wants to grow a good crop needs to know what is going on below the ground. That is where a soil scientist helps. Instead of looking at the field from above, the scientist studies it from the inside.

The scientist may dig a small pit or push a hollow tube into the ground and pull up a tall core of earth. Soil is arranged in layers, and each layer has its own color and feel. The top layer is often darker, because it holds rotted leaves and roots that add nutrients. Deeper layers may be lighter and contain more sand, stones, or clay.

Touch is a useful tool. When the scientist rubs a pinch of damp soil between two fingers, sand feels gritty, silt feels smooth like flour, and clay feels sticky. These differences matter. Sandy soil lets water drain away fast, while clay holds water so tightly that roots may struggle to breathe.

Samples are also sent to a lab for testing. The lab measures how much of the plant food is present, and whether the soil is too sour or too bitter for the crop. Armed with the results, the scientist suggests what to add, such as compost, and what to leave alone. A farmer who listens to the soil often saves money, because there is no need to add things the ground already has.

Questions

  1. How might a soil scientist look inside the ground? in the text

  2. Why is the top layer of soil often darker? in the text

  3. How does clay feel when rubbed between the fingers? in the text

  4. What happens to water in sandy soil? in the text

  5. Why might a farmer save money by listening to the soil? think about it

  6. Why might roots struggle in clay soil? think about it

Words to know

scientist
a person who studies how things work by testing them
nutrients
the parts of food that help plants and animals grow
clay
heavy, sticky soil that holds a lot of water
compost
rotted plant matter added to soil to feed it
drain
to flow away slowly
Share

One passage, three levels

The same topic and facts written three ways, so a mixed class can read and talk about one text. Each group’s sheet shows only a shape; the key says which is which.

● Easier · 224 words · Flesch-Kincaid grade 1.9

A farmer who wants a good crop needs to know what is going on under the ground. A soil scientist can help. The scientist does not just look at the field from above. The scientist studies it from the inside.

The scientist may dig a small pit. Or the scientist may push a hollow tube into the ground and pull up a tall core of earth. Soil comes in layers. Each layer has its own color and feel. The top layer is often darker. It holds rotted leaves and roots that add nutrients. Deeper layers may be lighter. They may have more sand, stones, or clay.

Touch is a useful tool. The scientist rubs a pinch of damp soil between two fingers. Sand feels gritty. Silt feels smooth like flour. Clay feels sticky. These things matter. Sandy soil lets water drain away fast. Clay holds water so tightly that roots may not get enough air.

Samples also go to a lab for tests. The lab checks how much plant food is in the soil. It also checks if the soil is too sour or too bitter for the crop. Then the scientist says what to add, like compost, and what to leave alone. A farmer who listens to the soil can save money. There is no need to add what the ground already has.

▲ This passage · 230 words · Flesch-Kincaid grade 5.2

A farmer who wants to grow a good crop needs to know what is going on below the ground. That is where a soil scientist helps. Instead of looking at the field from above, the scientist studies it from the inside.

The scientist may dig a small pit or push a hollow tube into the ground and pull up a tall core of earth. Soil is arranged in layers, and each layer has its own color and feel. The top layer is often darker, because it holds rotted leaves and roots that add nutrients. Deeper layers may be lighter and contain more sand, stones, or clay.

Touch is a useful tool. When the scientist rubs a pinch of damp soil between two fingers, sand feels gritty, silt feels smooth like flour, and clay feels sticky. These differences matter. Sandy soil lets water drain away fast, while clay holds water so tightly that roots may struggle to breathe.

Samples are also sent to a lab for testing. The lab measures how much of the plant food is present, and whether the soil is too sour or too bitter for the crop. Armed with the results, the scientist suggests what to add, such as compost, and what to leave alone. A farmer who listens to the soil often saves money, because there is no need to add things the ground already has.

■ Harder · 242 words · Flesch-Kincaid grade 8.1

A farmer who hopes to harvest a good crop needs to understand what is happening beneath the surface of the ground, and that is where a soil scientist becomes invaluable. Rather than merely surveying the field from above, the scientist investigates it from the inside.

The scientist may dig a small pit or drive a hollow tube into the earth and withdraw a tall core of soil. Soil is arranged in distinct layers, and each layer has its own color and texture. The uppermost layer is often darker, because it contains decayed leaves and roots that contribute nutrients. Deeper layers may be paler and contain a larger share of sand, stones, or clay.

Touch is a surprisingly useful tool. When the scientist rubs a pinch of damp soil between two fingers, sand feels gritty, silt feels smooth like flour, and clay feels sticky. These differences are significant. Sandy soil allows water to drain away rapidly, whereas clay holds water so tightly that roots may struggle to get enough air.

Samples are also sent to a laboratory for analysis. The lab measures how much plant food is present, and whether the soil is too sour or too bitter for the intended crop. Equipped with the results, the scientist recommends what to add, such as compost, and what to leave alone. A farmer who pays attention to the soil frequently saves money, since there is no reason to add what the ground already contains.

Download as one PDF

How to use it

  1. Press Read it big (or B) to put the text on the projector, or Full screen (F) to fill the whole screen.
  2. Ask the questions one at a time and use Show answer when the class has decided. A shows or hides every answer.
  3. Print student copy for the class, or Print with answers for yourself.

Ideas for class

  • Before reading, put scientist, nutrients, clay, compost and drain on the board with their meanings from the Words to know section and have students predict what the text will be about.
  • Read it aloud once while students follow along, then have them reread it alone or with a partner. At a calm 100 words a minute it takes about 2 minutes to read aloud.
  • Use the Read it big button (or B) to put the text on the projector, and Show answer on one question at a time so the class commits to an answer first.
  • Question 5 asks the reader to infer. Ask students to point to the words in the passage that led them to their answer.
  • Ask students to write one question the passage did not answer, then look for the answer in a book or on a classroom screen.
  • Print the student copy for independent work and keep the answer-key copy for yourself.

Related

Questions

What reading level is "A Soil Scientist Reads the Layers Underground"?

It was written for 6th grade. It has 230 words and works out to a Flesch-Kincaid grade level of about 5.2. That is a formula's estimate from sentence length and syllables, and it is not a Lexile or a guided reading level, so check it against your students.

What do the questions ask?

There are six. 4 ask for something the text says directly and 2 ask the reader to work something out from clues. Each has an answer in the key, and the answers are written as a teacher would accept them, not as the only possible wording.

How long does it take to read?

About 2 minutes read aloud at 100 words a minute. For a one-minute fluency check, paste it into the fluency timer and use the word count.

Can I print it?

Yes. Print student copy gives the passage, the questions with lines to write on, and the word meanings. Print with answers gives the same page with the answers filled in. Both are made in your browser.

Is this passage from a published book?

No. It was written for Peabody Teach, so there is no book to buy and no login to read it.

Nothing you do here is sent to us. No sign-in, no ads.