Understanding Ocean Tides: The Movement of the Sea

Introduction

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Have you ever wondered why the ocean water rises and falls every day? Why do some beaches have more water at certain times while others have less? In this WebQuest, you will become a young ocean scientist and explore the reasons behind ocean tides.

Your mission is to discover how tides happen, what causes them, and how they affect people, animals, and the environment.

Task

You will work individually or with a group to create a digital presentation or infographic explaining ocean tides.

Your final output should include:

- The meaning of ocean tides
- The role of the Moon and Sun in creating tides
- The difference between high tide and low tide
- The importance of tides in everyday life
- A diagram showing how tides occur

You will present your work to the class and share what you discovered.

Process

Follow these steps to complete your task:

Step 1: Explore the Topic  
Research what ocean tides are and why they happen.

Step 2: Gather Information  
Use the provided resources to learn about:
- Gravity
- The Moon’s effect on Earth’s oceans
- High tide and low tide
- The importance of tides

Step 3: Organize Your Ideas  
Create notes or a concept map to summarize your findings.

Step 4: Create Your Output  
Design a presentation or infographic using tools such as:
- Canva
- Google Slides
- PowerPoint

Step 5: Share Your Learning  
Present your output and explain how tides affect life on Earth.
 

Evaluation

Criteria 

 

 Excellent (4) | Good (3) | Needs Improvement (2) 



Accuracy of Information 

 Excellent (4)

Good (3)

Needs Improvement (2) 
Information is complete and correct  Most information is correct Some information is unclear or incorrect

 


Understanding of Concept 

Excellent (4)

Good (3)

Needs Improvement (2) 

Clearly explains causes and effects of tides

 
  • Shows basic understanding 

 

 Needs more explanation


 

Creativity and Presentation 

Excellent (4)

Good (3)

Needs Improvement (2) 
  • Output is organized and engaging 

 
  • Output is understandable 

 
  • Output needs improvement 

 


Teamwork/Participation 

Excellent (4)

Good (3)

Needs Improvement (2) 
  • Actively contributes ideas and effort 

 
  • Participates with guidance 

 
  • Limited participation 

Total Score: 16 points
 

Conclusion

Congratulations, young ocean scientists! Through this WebQuest, you discovered how tides are created and why they are important. You learned that the movement of ocean water is connected to forces beyond what we can see, such as gravity from the Moon and the Sun.

 

 

Reflect on these questions:

  • What new information did you learn about ocean tides?

  • How can understanding tides help people in real life?

  • How did using online resources help you complete your task?

Credits

 NASA – Tides and the Moon (https://www.nasa.gov?)  
 NOAA Ocean Service – What Are Tides? (https://oceanservice.noaa.gov?)  
National Geographic Education (https://education.nationalgeographic.org?)