Absorption – To take something in.
What will happen if we pour water in a container containing paper towels and another container containing Sodium Polyacrylate? What is Sodium Polyacrylate? It is the material in diapers. All the children shouted, “Ewwww”~ for diapers.
Mr. John took the container with the Sodium Polyacrylate and water, and dumped it out above the children’s heads. No water spilled out! We had fun learning about absorption!
Leak Proof Baggy
Polymers – Polymers chains working together.
“What? You poked holes with a pencil in a baggy filled with water? It didn’t come out?”
Yes! We slowly, but firmly pushed sharpened pencils through one side of a zip-locked bag filled with water. The water doesn’t leak at all!
Why? Plastic bags are made out of Polymers which are long chains of individual molecules, called monomers. So poking the bag with water means separating polymer chains without breaking them.
Play Dough Shapes
Buoyancy- A force in a liquid pushing against an object in the liquid.
We dropped different shaped (a bowl and a sphere) Play dough in water. The sphere shaped dough sank while the bowl shaped play dough floated. The sphere is dense and cannot push enough water out to stay a float. The bowl is able to push enough water out to equal its weight and therefore, floats!
We made our own slime!!!
We mixed Borax, Elemer’s glue and water. We stirred it with the spoon first and when we felt the long strands of molecules starting to connect, we used our hands!
Borax is the compound that is responsible for hooking the glue’s molecules together to form the putty-like material.
SCIENCE IS FUN!!!