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Video Information and Comprehension Questions

Blue Planet: Tidal Seas

The following questions appear onscreen in the video. Feel free to integrate them into your lesson plan as needed.

Part I
Before watching the video, consider this.
  • Tides determine the rhythm of the ocean. As you watch the program, think about the influence of the phases of the moon on the ocean and its inhabitants.
  • Look for examples of how tidal changes affect marine life. Which organisms are most affected by tides?
After watching, talk about this.
  • The rise and fall of the tides shifts sands along the shoreline, exposing prey to predators. Discuss the hunting and survival techniques of different marine animals as they adapt to this changing environment
Suggested activity
Research the types of plants and animals that live in tide pools. Create a poster that shows how the changes in the tides affect their living environment.
Part II
Before watching the video, consider this.
  • Tidal changes can wreak havoc on the coastline. As you watch the program, think about daily, monthly, and yearly tidal changes.
  • Pay attention to examples of how marine food chains are affected by tidal changes.
After watching, talk about this.
  • What adaptations do marine organisms living along a coast exhibit that are necessary for their survival? How do changes in temperature, salinity, and oxygen affect sea life?
  • In what ways is life a challenge for organisms living in the intertidal zone?
Suggested activity
Create a chart that explains the types of tides. Include the moon, Earth, and sun to illustrate how their placement influences the tides.