Autumn gives every classroom a built-in science lesson, right outside the window. This worksheet takes that everyday observation, leaves turning colors, and turns it into a genuine nonfiction reading exercise, one built specifically around cause and effect rather than simple fact recall.
Grade 3 Nonfiction Worksheet
For More grade 3 worksheets, Visit Grade 3 Reading Comprehension Worksheets.
Why Cause-and-Effect Nonfiction Belongs in Grade 3 Reading Practice
Third grade reading standards ask students to go beyond identifying individual facts in an informational text. They are expected to trace how one thing causes another, especially across a passage broken into multiple sections. A passage that simply lists facts about leaves would not build this skill nearly as well as one that walks through an actual chain of cause and effect: shorter days cause less chlorophyll, which causes fading green color, which reveals colors that were there all along.
This worksheet asks third graders to hold that whole chain together, not just recall one link of it. That’s a meaningfully harder task than answering a single fact-based question, and it’s exactly the kind of thinking this grade level is meant to build.
How This Passage Uses Headings to Organize a Cause-and-Effect Chain
It’s worth pointing this structure out directly. Each section of the passage builds on the one before it: chlorophyll and green color, then what happens as days get shorter, then the colors that become visible, and finally why this matters for the tree’s survival. The headings are not random. They mark each link in the cause-and-effect chain, and a careful reader can use them almost like a roadmap while reading.
Encouraging your child to notice this structure, rather than just reading straight through without pausing, makes the sequencing and explanation questions at the end far more manageable.
What’s Inside This Worksheet
This worksheet features an original informational passage, “Why Do Leaves Change Color in Fall?” broken into four short, headed sections. It explains how chlorophyll makes leaves green, why shorter fall days cause a tree to stop producing it, what colors were hiding underneath all along, and why trees drop their leaves in the first place. The explanation stays scientifically accurate while remaining accessible to a third grade reading level.
The worksheet includes:
- Multiple Choice. Questions checking recall of specific facts across all four sections.
- True or False. Quick statements reinforcing careful, fact-based reading.
- Fill in the Blank. Vocabulary practice using science terms pulled directly from the passage.
- Think and Explain. A cause-and-effect question asking students to explain, in their own words, the full chain of events from shorter days to visible leaf color, using details from at least two sections.
That final question requires synthesis, not just recall. Students have to connect information across the passage’s structure into one coherent explanation, which is genuine higher-level nonfiction comprehension for this grade.
How to Use This Worksheet
Read the passage section by section, pausing after each heading to ask “so what happened, and why?” This kind of pacing builds the cause-and-effect habit naturally, rather than leaving your child to piece the whole chain together cold at the end. If it’s actually fall where you live, a walk outside afterward to spot different leaf colors can make the science feel immediate and real.
This worksheet fits naturally into a home reading and science routine, a classroom life science or earth science connection, or a homeschool lesson pairing reading with a seasonal science unit. It also pairs well with our other Grade 3 worksheets, “The Science Fair Surprise” and “The Mystery of the Missing Trophy,” rounding out a mix of fiction, drama, and nonfiction at this grade level.
Tips for Getting the Most Out of It
Read the passage twice: once for the overall idea, and once specifically tracing the cause-and-effect chain from start to finish. Ask your child to explain the process out loud, in order, before writing anything down for the final question. And if they get a step wrong or out of order, have them go back to the specific heading that covers it, rather than simply telling them the answer. That habit of returning to the text is worth building early.
Frequently Asked Questions
Is this worksheet fiction or nonfiction?
It’s nonfiction, a science-based informational passage about why leaves change color, different from the fictional stories and drama used in our other Grade 3 worksheets.
How long does this worksheet take to complete?
Most third graders finish in about 20 to 25 minutes, including the cause-and-effect explanation question.
Is an answer key included?
Yes, as a separate PDF, so you can print just the worksheet for your child and keep the key handy for grading.
Download the Worksheet
The printable nonfiction worksheet and its separate answer key are ready to download. It’s a science-rich addition to your Grade 3 reading library, giving your child practice tracing cause and effect through a real, seasonally relevant topic.
Happy reading.