Bathymetry

High school (ages 12+)
Geography

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/bathymetry

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific discipline?Measurement and mapping of underwater depths and seafloor topography
2. What is the primary measurement tools?Multibeam echo sounders, single-beam echo sounders, side-scan sonar
3. How do scientists measure the ocean floor?Scientists use sound waves that bounce off the bottom. Modern tools like multibeam echo sounders send a fan of sound and record how long it takes to come back, giving many depth points at once.
4. What are some big features found on the ocean floor?The ocean floor has huge mountains called mid‑ocean ridges that stretch for 65,000 km, very deep trenches like the Mariana Trench that go almost 11,000 meters deep, and flat plains called abyssal plains.

Hydrography: The science that measures and describes the physical features of oceans, seas, coastal areas, and navigable waterways.
Seafloor Mapping: The process of creating detailed representations of the physical features of the ocean floor.
Geomorphology: The study of the origin and evolution of terrestrial and extraterrestrial large-scale physical features of the Earth's surface.