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Which Evidence Supports What is a free printable Grade 4 English worksheet on matching a piece of evidence to its claim, aligned to Common Core standard RI.4.8. It prints 2 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 14 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Which Evidence Supports What

RI.4.8

NameDate

Read the text, then answer the questions.

1.Read the text, then answer the questions.

The Accidental Photograph

In 1895 Wilhelm Röntgen was working with a covered tube in a darkened room when he noticed a screen across the laboratory glowing. Something was passing through the cover and crossing the room. He did not know what it was, so he called it X — the unknown. He spent seven weeks alone in the laboratory testing it. He put wood, rubber and metal in the way. Metal stopped it; the rest did not. Then he asked his wife to put her hand between the tube and a photographic plate. The picture showed the bones of her hand and her wedding ring. Within a year, X-rays were being used in hospitals. Röntgen refused to patent them.

  1. 1. The text says Röntgen refused to patent X-rays. What does that suggest about him?
  2. 2. What is the author's purpose, and how do you know?
2.Read the text, then answer the questions.

What a Beaver Dam Does

A beaver does not build a dam for shelter. It builds one to make a pond, and it lives in a lodge in the pond. The dam raises the water so the lodge entrance stays underwater. A predator that cannot swim cannot get in. But the pond does far more than protect one family. Behind a dam, water slows, and slow water drops the silt it carries. Over years this builds rich wet ground. That ground holds water in a drought and holds it back in a flood. It supports plants, insects, amphibians and birds that were not there before. Where beavers have been reintroduced, the number of species in a valley typically rises within five years.

  1. 1. What is the author's purpose, and how do you know?
  2. 2. The text says the pond does more than protect one family. What evidence supports that?

LessonPrint · RI.4.8 · Set 14 · free to copy for classroom use

Answer key — Which Evidence Supports What

Set 14. Prints on its own sheet.

  1. 1.1. That he wanted them used freely rather than owned — it is stated as his choice. 2. To explain how an accident became a tool — the text follows the observation through testing to hospital use.
  2. 2.1. To correct the idea that a dam is a beaver's house and explain what it does for a valley. 2. The wet ground it builds holds water in drought and flood and supports new plants, insects, amphibians and birds.

Last reviewed 2026-09-05. Aligned to RI.4.8 of the Common Core State Standards for English language arts.