Lets Think About...Water
Activities:
4. Water Weighs Something and It Is Heavy
Use two balloons that are the same color and size.
Fill one balloon with air and another with water.
Have the children guess if they weigh the same or if one will weigh more than the other.
Let the children test their ideas by handling the balloons.
Discussion:
Do they weigh the same? If so, why not?
Which weighs more, water or air?
Demonstrate using a half filled bottle.
The water stays on the bottom no matter which way it is turned.
5. Some Things Dissolve in Water and Some Things Do Not
Place several large clear plastic cups filled with water on a table.
Make available equal amounts of edible items, such as sugar, salt, cooking oil, Ðand rice. Baking soda, tea leaves, granulated jello and seeds may be used as well.
Discussion:
Do all things react the same when placed in water?
What do you think will happen? Some things dissolve when put in water.
Some things remain the same.
Place a tablespoon of salt in the first cup. Stir. Observe, taste and discuss.
Continue this process, with each of the items.
Note: With younger children test fewer items.