Combine harvester

High school (ages 12+)
Making & Design

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/combine-harvester

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary agricultural function?Simultaneous reaping, threshing, and winnowing of grain crops
2. What is the key operational stages?Cutting (header), separation (threshing drum/rotor), cleaning (sieves/fan), and storage (grain tank)
3. Why is it called a "combine"?It’s called a combine because it combines three jobs—cutting, threshing, and winnowing—into one machine.
4. How did combine harvesters change farming in the past?They made harvesting faster and easier, needed fewer workers, and kept more of the crop from being lost.

Winnowing: A process of separating the chaff and lighter impurities from grain by using wind or air.
Precision Agriculture: Farming management based on observing, measuring, and responding to inter- and intra-field variability in crops.
Header Attachment: Interchangeable front-end equipment on a combine designed for specific crop types.