What is in the ocean water?
List as many different types of things as you can.
We can’t see the salt in ocean water.
How could we figure out if there’s really salt in ocean water?
Teachers: If you are short on time, this is a good stopping point. Your students can make their Paper Bag Landscapes in a future session.
If you’re continuing right now, advance to the next slide.
How could you take the water out of ocean water?
Ask your students: What do you think will happen if we keep adding salt to the Tiny Ocean? Then try the experiment:
Try the experiment and see if you were right!
The following readings are free with registration at Readworks.
How did the Great Salt Lake in Utah become salty? (Grade 3)
The Uyuni Salt Flat of Bolivia is the largest salt flat on Earth. (Grade 5)
The following readings are free from Wonderopolis.
The Dead Sea is one of the Earth’s saltiest seas. (Grade 5-6)
Ocean water is very salty, but why? Where does all that salt come from?(Grade 6)
Check out these Mystery Science Mini-lessons. Each has a 5-minute video with a bonus of 5 amazing visuals guaranteed to spark curiosity and discussion about salt.
Why is the ocean salty? with Bonus Top 5 Amazing Things about Salt
Where does salt come from? with Bonus Top 5 Amazing Artworks Made of Salt
This app from Smithsonian in The Classroom uses a model to explain what happens when sugar dissolves in water and when water evaporates.