📚 Topic Summary
Oceans, lakes, and rivers are all important bodies of water, but they're different in many ways! Oceans are huge saltwater environments that cover most of the Earth. Lakes are large bodies of freshwater surrounded by land, and rivers are flowing bodies of freshwater that usually lead to an ocean or lake. Understanding these differences helps us appreciate the variety of life they support and how important they are to our planet.
🌊 Part A: Vocabulary
Match the following terms with their definitions:
| Term |
Definition |
| 1. Ocean |
A. A large body of freshwater surrounded by land. |
| 2. Lake |
B. A flowing body of freshwater that empties into a larger body of water. |
| 3. River |
C. The process by which water changes from liquid to gas. |
| 4. Evaporation |
D. A large body of saltwater that covers most of the Earth. |
| 5. Watershed |
E. An area of land that drains into a specific body of water. |
(Answers: 1-D, 2-A, 3-B, 4-C, 5-E)
💧 Part B: Fill in the Blanks
Complete the sentences using the words provided: freshwater, saltwater, ocean, river, lake.
- Most of the Earth is covered by __________.
- A __________ is a body of water that flows towards the ocean.
- A __________ usually contains __________ , while the ocean contains __________.
- The Great Lakes are examples of a __________.
(Answers: 1. ocean, 2. river, 3. lake, freshwater, saltwater, 4. lake)
🐠 Part C: Critical Thinking
Why are oceans, lakes, and rivers important to the environment and to people?