Oceans & Rivers Worksheet for 8-Year-Olds — 30 Questions (T/F, Fill-in, MCQ & Short Answer)

Instructions

Read each question carefully and answer to the best of your ability. Try to complete all the sections. Good luck!

Part 1: True or False

Read each sentence. If the sentence is correct, write True. If it is incorrect, write False.

1. There are five main oceans on Earth. __________
2. River water is salty, just like ocean water. __________
3. A sea is much larger than an ocean. __________
4. Humans can drink water directly from the ocean without cleaning it. __________
5. Rivers always flow from high ground to low ground. __________
6. The Pacific Ocean is the largest ocean in the world. __________
7. We use water from rivers to help grow food on farms. __________
8. All rivers flow directly into an ocean. __________

Part 2: Fill in the Blanks

Choose the correct word from the word bank to complete each sentence.

1. A river is a body of moving ____________________.
2. There are a total of ____________________ oceans in the world.
3. Water in the ocean is very ____________________ and not safe to drink.
4. A smaller body of salt water partly enclosed by land is called a ____________________.
5. The ____________________ Ocean is the third largest ocean.
6. Many rivers eventually flow into a bigger body of water, like an ____________________.
7. Dams built on rivers can be used to make ____________________.
8. Water from rivers is very important for ____________________ to help crops grow.

Part 3: Multiple Choice Questions

Circle the correct answer (A, B, or C) for each question.

1. How many main oceans are there in the world?

   A) Three     B) Five     C) Seven

2. What kind of water is found in rivers?

   A) Saltwater     B) Sticky water     C) Freshwater

3. Which of these is a way people use river water?

   A) Building roads     B) Drinking (after cleaning)     C) Making sand

4. What is the biggest ocean on Earth?

   A) Atlantic     B) Arctic     C) Pacific

5. Which sentence best describes a sea?

   A) It is bigger than an ocean.
   B) It is a large body of freshwater.
   C) It is part of an ocean, partly surrounded by land.

6. The land on either side of a river is called the...

   A) River floor     B) River bank     C) River roof

7. Which of these is NOT an ocean?

   A) Southern     B) Mediterranean     C) Indian

8. Why can't humans drink ocean water?

   A) It is too cold.     B) It is too salty.     C) It is too deep.

Part 4: Short Answer Questions

Write your answer in the space provided.

1. Name two of the world's five oceans.

   __________________________________________________________________

2. What is the main difference between the water in an ocean and the water in a river?

   __________________________________________________________________

3. List two ways people use rivers for transportation or fun.

   __________________________________________________________________

4. Explain in one sentence why it is important to keep our rivers and oceans clean.

   __________________________________________________________________

5. What is a river?

   __________________________________________________________________

6. How is an ocean different from a sea?

   __________________________________________________________________

Answer Key

Part 1: True or False

1. True
2. False
3. False
4. False
5. True
6. True
7. True
8. False (Some flow into lakes or other seas.)

Part 2: Fill in the Blanks

1. freshwater
2. five
3. salty
4. sea
5. Indian
6. ocean
7. electricity
8. farming

Part 3: Multiple Choice Questions

1. B) Five
2. C) Freshwater
3. B) Drinking (after cleaning)
4. C) Pacific
5. C) It is part of an ocean, partly surrounded by land.
6. B) River bank
7. B) Mediterranean (It is a sea)
8. B) It is too salty.

Part 4: Short Answer Questions (Sample Answers)

1. Any two of: Pacific, Atlantic, Indian, Southern, Arctic.
2. Ocean water is salty, and river water is fresh (not salty).
3. People use rivers for boating, kayaking, fishing, swimming, or moving goods on large boats (barges).
4. It is important to keep them clean so that the animals that live there can stay healthy and we have clean water to use.
5. A river is a large, natural stream of flowing freshwater.
6. An ocean is a very large body of salt water, while a sea is a smaller part of an ocean that is usually partly enclosed by land.