Understanding Ocean Tides: Why Does the Sea Rise and Fall?

Introduction

Have you ever visited a beach and noticed that the water level changes throughout the day? Sometimes the water moves closer to the shore, while at other times it moves farther away. These changes are called ocean tides. In this WebQuest, you will explore what causes tides and why they are important to people, animals, and the environment. By the end of this activity, you will become a “Tide Investigator” and discover the science behind this natural phenomenon.

Task

Your task is to create a one-page infographic, poster, or digital presentation that explains:

  • What ocean tides are
  • The causes of ocean tides
  • The difference between high tide and low tide
  • The importance of tides in everyday life

Your output should include pictures, key information, and examples.

Process

Process

  1. Read the online resources provided below.
  2. Watch the educational video about ocean tides.
  3. Take notes about the causes and effects of tides.
  4. Identify the differences between high tide and low tide.
  5. Gather important facts and examples.
  6. Create your infographic, poster, or presentation.
  7. Review your work and submit it to your teacher.

Resources

Website 1:

https://oceanservice.noaa.gov/education/tutorial_tides/

Website 2:

https://kids.britannica.com/students/article/tide/277208

Website 3:

https://www.nationalgeographic.org/encyclopedia/tide/

Video Resource:

https://www.youtube.com/results?search_query=what+causes+ocean+tides

Evaluation
Criteria Excellent (5) Good (4) Fair (3) Needs Improvement (2)
Content Accuracy Information is accurate and complete Mostly accurate Some inaccuracies Many inaccuracies
Organization Well-organized and easy to understand Mostly organized Somewhat organized Difficult to follow
Creativity Very creative and visually appealing Creative Some creativity Limited creativity
Completion All requirements completed Most requirements completed Some requirements completed Incomplete

Total Score: 20 Points

 

Conclusion

Congratulations! You have successfully completed your WebQuest on ocean tides. Through this activity, you learned how the moon and the sun influence the movement of ocean water and why tides are important in our daily lives. You also practiced research, critical thinking, and digital literacy skills by gathering information from online resources and presenting your findings creatively.

Credits

The following resources were used in this WebQuest:

  • National Oceanic and Atmospheric Administration (NOAA)
  • Britannica Kids
  • National Geographic Education
  • YouTube Educational Videos
Teacher Page

Grade Level: Grade 8

Subject: Science

Topic: Ocean Tides

Learning Objective:

At the end of the lesson, students should be able to:

  • Explain the causes of ocean tides.
  • Differentiate high tide and low tide.
  • Describe the importance of ocean tides in everyday life.

Materials Needed:

  • Internet connection
  • Computer, tablet, or smartphone
  • Canva, PowerPoint, or any presentation tool

Estimated Time:

45–60 minutes