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3rd Grade

Reading, writing, multiplication, division, and problem solving

Worksheet for 2026-09-12

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📖 Why Feathers Keep Birds Warm

Bird feathers trap small pockets of air near the body. Trapped air slows the loss of body heat. Birds can fluff their feathers to trap even more air. This insulation is especially useful in cold weather.

1. What is one important fact from the passage?

 

2. What second detail explains the topic?

 

3. What additional detail does the passage give?

 

4. What is the main idea?

 

✏️ Writing

Write 3–4 sentences explaining why feathers keep birds warm. Use at least two details from the passage.

➕ Math

1. A rectangle is 8 units long and 6 units wide. What is its area? ______
2. What is the perimeter of that rectangle? ______
3. How many right angles does a rectangle have? ______
4. A square has sides of 5 units. What is its perimeter? ______

🎨 Color & Create

Draw and label a simple diagram that helps explain why feathers keep birds warm.

View Answer Key

📖 Reading Answers

  1. Bird feathers trap small pockets of air near the body.
  2. Trapped air slows the loss of body heat.
  3. Birds can fluff their feathers to trap even more air.
  4. The passage explains why feathers keep birds warm.

➕ Math Answers

  1. 48
  2. 28
  3. 4
  4. 20

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