Maggie’s
Activity Pack
Name __________________________
Date ___________________________
Lots of Salty Water!
Look at a globe. Do you see blue? Yes! That’s because there is a lot
of ocean water. All this water seems to circle our world. One ocean
becomes another ocean. There are no gates from one ocean to the next.
But, we divide all this salt water into five oceans. They are the Atlantic
Ocean, the Arctic Ocean, the Indian Ocean, the Pacific Ocean, and the
Southern Ocean. It can be difficult to get exact numbers about each
ocean’s area and depth. But the charts below will give you an idea about
the world’s oceans.
Square Miles of World’s Oceans
Name of Ocean
Area in Square Miles
Atlantic Ocean
41,105,000 square miles
Arctic Ocean
5,427,000 square miles
Indian Ocean
26,469,900 square miles
Pacific Ocean
63,784,077 square miles
Southern Ocean
7,848,300 square miles
1. Circle each digit in the tens place.
2. Write the area of the Indian Ocean using words.
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3. Write the area of the Atlantic Ocean using words.
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© Maggie's Earth Adventures, LLC 2013. www.missmaggie.org Teachers may reproduce for classroom use.
4. What is the smallest ocean in area?
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5. What is the largest ocean in area?
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Deepest Point in the Oceans
Name of Ocean
Deepest Point in Feet
Atlantic Ocean
28,374 feet
Arctic Ocean
17,881 feet
Indian Ocean
26,401 feet
Pacific Ocean
36,198 feet
Southern Ocean
23,737 feet
Deepest Point
Rounded to the
Nearest Ten
6. Round each number to the nearest ten and put your answer in the third
column.
7. Which ocean has the deepest point?
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8. What is the Indian Ocean’s deepest point, 26,401,
rounded to the nearest hundred?
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9. What is the Atlantic Ocean’s deepest point, 28,374,
rounded to the nearest hundred?
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© Maggie's Earth Adventures, LLC 2013. www.missmaggie.org Teachers may reproduce for classroom use.
Dear Maggie Colleague,
This activity allows for practice of many key mathematical concepts within the
realm of understanding oceans. The design of this WAP allows you to first assess
whether children are able to appropriately read large numbers. The task of translating
digits to the written word gives you insight into a child’s understanding of number. In
both the primary and intermediate versions of the activity, a few questions deal with
place value, including identifying the digit in a specific place. The intermediate level
asks students to put numbers in sequential order. Primary teachers may offer this type
of question as an extension. As you know these are pre-requisite skills for the important
concept of rounding. What better way to check for understanding of these key concepts
than to use the context of the world’s oceans!
A perfect way to extend the activity is to encourage children to identify the
oceans on a globe. Fill a jar with the names of various cities. Children can choose a
paper and then tell which ocean they would be looking at if they were in that city. This
could become a center activity. Prepare by placing Velcro strips on selected cities on
the map. Write city names along with placing additional Velcro on craft sticks. Have
children place the sticks at appropriate places on the world map. When completed, ask
them to show which ocean can be seen from the city using a center “exit ticket” that you
have constructed like this:
City:
Sydney
Ocean:
Honolulu
Reykjavík
You decide if you will add the country, depending on the needs and background
knowledge of your class.
Happy teaching,
Dr. Kathy
Answer Key:
1. 0; 0; 0; 7; 0
2. twenty-six million, four hundred sixty-nine thousand, nine hundred
3. forty-one million, one hundred five thousand
4. Arctic Ocean
5. Pacific Ocean
6. 28,370; 17,880; 26,400, 36,200 (this might be quite challenging for your primary
students – use as an extension!); 23,740
7. Pacific Ocean
8. 26,400
9. 28,400
Goals:
Children are presented with mathematical facts about ocean area and depth. They write these
numbers using standard form, identify the place value of selected digits, and round the
numbers. A center follow-up activity, which is integrated with social studies/geography, is
described in the Dear Colleague letter. This activity is available on the emergent, primary, and
intermediate levels and correlates with the Numbers and Operations Strand of NCTM’s
standards and the Numbers and Operations in Base Ten Standard of Common Core.
© Maggie's Earth Adventures, LLC 2013. www.missmaggie.org Teachers may reproduce for classroom use.