<!DOCTYPE html>
<html><head><meta charset="utf-8">
<style>@page { size: 8.5in 11in; margin: 0.5in; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Georgia', serif; color: #1a1a1a; font-size: 12px; line-height: 1.5; }
h1 { font-size: 22px; color: #2e7d32; margin-bottom: 2px; }
h2 { font-size: 13px; color: #555; font-weight: normal; font-style: italic; margin-bottom: 6px; }
h3 { font-size: 14px; color: #2e7d32; margin: 8px 0 4px; page-break-after: avoid; }
.reading-box { background: #e8f5e9; border-left: 5px solid #43a047; border-radius: 0 8px 8px 0; padding: 8px 12px; margin-bottom: 6px; font-size: 11.5px; line-height: 1.35; }
.reading-box p { margin-bottom: 3px; text-indent: 1em; }
.reading-box p:last-child { margin-bottom: 0; }
.answer-line { border-bottom: 1px solid #b0bec5; height: 22px; }
.answer-lines-triple .line-row { border-bottom: 1px solid #b0bec5; height: 18px; }
.activity-box { border: 2px solid #42a5f5; border-radius: 6px; padding: 7px 10px; margin-bottom: 6px; }
.draw-box { border: 2px dashed #42a5f5; border-radius: 6px; height: 70px; background: #fafafa; margin-bottom: 6px; }
.circle-box { display: inline-block; width: 14px; height: 14px; border: 2px solid #42a5f5; border-radius: 50%; margin-right: 3px; vertical-align: middle; }
.wordbank span { background: #e3f2fd; border: 1px solid #42a5f5; border-radius: 4px; padding: 1px 5px; font-size: 10.5px; margin-right: 2px; display: inline-block; margin-bottom: 2px; }
table { width: 100%; border-collapse: collapse; margin-bottom: 6px; font-size: 11px; page-break-inside: avoid; }
th { background: #e8f5e9; color: #2e7d32; padding: 3px 5px; text-align: left; font-size: 10.5px; border: 1px solid #c8e6c9; }
td { padding: 3px 5px; border: 1px solid #e0e0e0; }
tr:nth-child(even) { background: #f9fbe7; }
.page { width: 7.5in; min-height: 10in; position: relative; }
.page + .page { page-break-before: always; }
.vocab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-bottom: 6px; }
.vocab-card { border: 2px solid #42a5f5; border-radius: 6px; padding: 4px 7px; }
.vocab-card strong { display: block; color: #1565c0; font-size: 12px; margin-bottom: 2px; }
.vocab-card .line-row { border-bottom: 1px solid #b0bec5; height: 16px; }
.journal-box { border: 2px solid #c9b99a; border-radius: 8px; padding: 8px; min-height: 60px; margin-bottom: 6px; font-size: 11px; }
.journal-line { border-bottom: 1px solid #ccc; height: 20px; }
</style></head><body>
<!-- PAGE 1 -->
<div class="page">
<h1>🧪 Erosion Tray Experiment</h1>
<h2>Week 24 — Wednesday | Testing How Wind and Water Change Land</h2>
<h3>📖 Reading Time</h3>
<div class="reading-box">
<p>Today you are going to build a model of how weathering and erosion change the land. Scientists call this kind of model an <strong>erosion tray</strong>. By creating a small version of a hillside, you can watch what happens when water and wind act on soil. This experiment will help you understand how real landscapes are shaped over millions of years.</p>
<p>In nature, <strong>vegetation</strong> (plants and grass) plays a very important role in preventing erosion. Plant roots hold the soil together like a net, making it much harder for water and wind to carry the soil away. Areas without plants, like bare dirt after a forest fire, are much more vulnerable to erosion. This is why deforestation can lead to landslides and why farmers plant cover crops to protect their soil.</p>
<p>During this experiment, you will test different conditions: bare soil versus soil with plants, gentle water versus fast water, and no wind versus strong wind. By comparing the results, you will see which conditions cause the most erosion and which ones protect the soil. This is the same kind of experiment that environmental scientists use to design better ways to protect our land and waterways.</p>
</div>
<h3>✏️ Reading Questions</h3>
<p><strong>1. What does vegetation do to help prevent erosion?</strong></p>
<div class="answer-line"></div>
<p><strong>2. Why are areas without plants more vulnerable to erosion?</strong></p>
<div class="answer-line"></div>
<p><strong>3. What three conditions will you test in the erosion tray experiment?</strong></p>
<div class="answer-line"></div>
<p><strong>4. Explain why understanding erosion is important for farmers and environmental scientists.</strong></p>
<div class="answer-lines-triple">
<div class="line-row"></div>
<div class="line-row"></div>
<div class="line-row"></div>
</div>
<h3>📝 Vocabulary Grid</h3>
<p>Write a definition or draw a picture for each word.</p>
<div class="vocab-grid">
<div class="vocab-card"><strong>🌱 Vegetation</strong><div class="line-row"></div></div>
<div class="vocab-card"><strong>🧪 Hypothesis</strong><div class="line-row"></div></div>
<div class="vocab-card"><strong>📐 Experiment</strong><div class="line-row"></div></div>
<div class="vocab-card"><strong>📝 Observation</strong><div class="line-row"></div></div>
<div class="vocab-card"><strong>📊 Data</strong><div class="line-row"></div></div>
<div class="vocab-card"><strong>✅ Conclusion</strong><div class="line-row"></div></div>
</div>
</div>
<!-- PAGE 2 -->
<div class="page">
<h3>🧪 Your Erosion Tray Experiment</h3>
<div class="activity-box">
<p><strong>Materials:</strong> A shallow tray or baking pan, dirt or sand, water, a spray bottle or watering can, small twigs or grass clippings, a fan (optional), paper towels for cleanup.<br>
<strong>Setup:</strong> Build a small hill in one half of the tray. Leave the other half flat to collect eroded material. Cover part of the hill with twigs or grass to represent vegetation. Leave part bare.</p>
</div>
<p><strong>Before you start: Write your hypothesis. What do you predict will happen when you pour water on bare soil versus soil with vegetation?</strong></p>
<div class="answer-lines-triple">
<div class="line-row"></div>
<div class="line-row"></div>
<div class="line-row"></div>
</div>
<h3>📋 Experiment: Water Erosion</h3>
<table>
<tr><th style="width: 130px;">Test</th><th>What You Did</th><th>What Happened to the Soil?</th><th style="width: 130px;">How Much Erosion?</th></tr>
<tr><td>Light rain on bare soil</td><td style="height: 22px;">Spray water gently</td><td></td><td></td></tr>
<tr><td>Heavy rain on bare soil</td><td>Pour water quickly</td><td></td><td></td></tr>
<tr><td>Light rain with vegetation</td><td>Spray water gently on planted area</td><td></td><td></td></tr>
<tr><td>Heavy rain with vegetation</td><td>Pour water quickly on planted area</td><td></td><td></td></tr>
</table>
<h3>🎨 Draw Your Results</h3>
<p><strong>Draw your erosion tray before and after the experiment. Show what happened to the soil and where sediment collected.</strong></p>
<p><em>Before the experiment:</em></p>
<div class="draw-box" style="height: 60px;"></div>
<p><em>After the experiment:</em></p>
<div class="draw-box" style="height: 60px;"></div>
</div>
<!-- PAGE 3 -->
<div class="page">
<h3>📊 Experiment Data Analysis</h3>
<p><strong>1. Which test caused the most erosion? Why do you think so?</strong></p>
<div class="answer-line"></div>
<p><strong>2. Which test caused the least erosion? Why do you think so?</strong></p>
<div class="answer-line"></div>
<p><strong>3. Was your hypothesis correct? Explain your reasoning.</strong></p>
<div class="answer-line"></div>
<p><strong>4. How does this experiment show what happens to real hillsides during heavy rain?</strong></p>
<div class="answer-lines-triple">
<div class="line-row"></div>
<div class="line-row"></div>
<div class="line-row"></div>
</div>
<h3>✅ True or False — Circle Your Answer</h3>
<p><span class="circle-box"></span> <strong>1.</strong> Vegetation helps hold soil in place and prevent erosion.</p>
<p><span class="circle-box"></span> <strong>2.</strong> Fast-moving water causes less erosion than slow water.</p>
<p><span class="circle-box"></span> <strong>3.</strong> Bare soil erodes more easily than soil with plants.</p>
<p><span class="circle-box"></span> <strong>4.</strong> An erosion tray is a model that shows how the land changes.</p>
<p><span class="circle-box"></span> <strong>5.</strong> A hypothesis is a guess made after the experiment is finished.</p>
<p><span class="circle-box"></span> <strong>6.</strong> Sediment is material that gets carried by erosion.</p>
<p><span class="circle-box"></span> <strong>7.</strong> Deforestation (cutting down trees) increases erosion.</p>
<p><span class="circle-box"></span> <strong>8.</strong> Farmers use cover crops to protect soil from erosion.</p>
<h3>✏️ Fill in the Blanks</h3>
<div class="wordbank">
<p><strong>Word Bank:</strong>
<span>weathering</span><span>erosion</span><span>vegetation</span><span>sediment</span><span>deforestation</span><span>hypothesis</span><span>observation</span><span>conclusion</span>
</p></div>
<p>1. The movement of soil and rock by wind or water is called ________________.</p>
<p>2. Plants and grass that cover the ground are called ________________.</p>
<p>3. Small pieces of rock and soil carried by erosion are ________________.</p>
<p>4. Cutting down all the trees in an area is called ________________.</p>
<p>5. A prediction made before an experiment is a ________________.</p>
<p>6. Information collected during an experiment is an ________________.</p>
<p>7. The final explanation after an experiment is a ________________.</p>
<p>8. The breaking down of rocks into smaller pieces is ________________.</p>
<h3>💭 Think About It</h3>
<p><strong>After a large forest fire, all the trees and plants are gone. What do you think happens to the soil on the hillsides during the next heavy rain? Why?</strong></p>
<div class="answer-lines-triple">
<div class="line-row"></div>
<div class="line-row"></div>
<div class="line-row"></div>
</div>
</div>
</body></html>