Guardians of the Coast: Understanding Ocean Tides

Introduction

Have you ever wondered why the ocean rises and falls every day? Coastal communities depend on tides for fishing, transportation, and safety. But what causes these changes in sea level?

In this WebQuest, you will become a Coastal Science Team tasked with explaining tidal patterns to a local community planning a seaside festival. Your job is to investigate what causes tides and recommend the safest time for the event.

Task

Your group will create a digital presentation (Google Slides, PowerPoint, or infographic) that:

  1. Explains what ocean tides are

  2. Describes the roles of the Moon and the Sun

  3. Differentiates high tide, low tide, spring tide, and neap tide

  4. Recommends the safest schedule for a coastal festival based on tidal patterns

Your final product should include:

  • At least 2 labeled diagrams

  • A clear explanation of gravitational pull

  • A short recommendation paragraph

Process

Step 1: Build Background Knowledge

Research what tides are and why they happen.

Step 2: Investigate the Causes

Find out how the Moon’s gravity affects Earth’s oceans.

Examine how the Sun also influences tidal patterns.

Step 3: Compare Tidal Types

Create a simple chart comparing:

  • High tide

  • Low tide

  • Spring tide

  • Neap tide

    Step 4: Analyze a Scenario

    Imagine the festival is scheduled during a spring tide.

    Discuss: Is this safe? Why or why not?

    Step 5: Create Your Presentation

    Organize your findings into a clear and creative presentation.

Evaluation
Criteria Excellent (4) Good (3) Fair (2) Needs Improvement (1)
Content Accuracy All explanations are scientifically accurate and clear Mostly accurate with minor errors Some misunderstandings Major inaccuracies
Diagrams Clear, labeled, and detailed Labeled but lacks detail Some labels missing No clear diagrams
Analysis & Recommendation Strong reasoning and justified recommendation Reasonable explanation Limited reasoning No clear justification
Presentation Quality Organized, creative, engaging Organized Somewhat disorganized Difficult to follow
Conclusion

Through this WebQuest, you have explored how gravitational forces from the Moon and Sun influence ocean tides. You applied scientific reasoning to solve a real-world problem—helping a coastal community plan safely.

Reflect:

  • Why is understanding tides important for people living near oceans?

  • How does gravity influence other natural phenomena?

Credits

Students may use the following:

Teacher Page

ACE ROQUILLO ORCULO