Grades 3–5
The Ocean Zones
Label the sunlight, twilight and midnight zones, the abyss and a trench, then answer three questions.
Science worksheet · Oceans
Salt Water Float Test
An experiment: does an egg sink or float in fresh water and in salty water like the ocean?
- Grade level
- Grades 2–5
- Time
- About 30 minutes
- Topic
- Oceans
- Answer key
- Not needed: answers vary
- Kids practice
- Ocean life, Ocean zones, Protecting the ocean
What kids do
Printed on the sheet:
- You need: 2 clear cups, warm water, salt, a spoon and a raw egg. Do it: fill both cups halfway with water. Stir 6 big spoonfuls of salt into one cup until it dissolves. Gently lower the egg into each cup with the spoon.
- I predict the egg will…
- What really happened
- Draw the egg in each cup.
- Ocean water is salty. Why is it easier to float in the ocean than in a pool?
Teacher tip
Stir in salt a spoon at a time and watch the egg rise.
How to use it
- Show photos from each ocean zone and talk about the light.
- Fill a clear tub with water to talk about how deep the ocean is.
- Start with a two-minute “I notice, I wonder” talk about the picture on the sheet.
Watch for
Coral is an animal, not a rock or a plant.
Talk about it
- How do animals survive in the dark deep sea?
- Where have you seen this outside of school?
Take it further
Make a class ocean zone poster with paper animals.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More oceans worksheets
Grades 2–4
Sea Animal Adaptations
Match seven sea animals to the body part or behavior that helps them live in the ocean.
Grades 2–5
Coral Reefs
Seven coral reef facts to mark true or false, then draw a reef with three animals that live there.
Grades 1–4
Help the Ocean
Color the choices that help the ocean and put an X on the ones that hurt it, then plan how your class can help.
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