Slime!

Today we made slime! Matter has three normal states: liquid, solid and gas. Sometimes things don't quite fit into those categories.  Slime is one of those, it is between a liquid and a solid. It has liquid properties like its wet and it can change its shape. And it has solid properties by holding its shape and has a hard time taking a lot of stress, which is why it ripped when we pulled on it! But it can take some stress, like when you pull it slowly and it stretches.

To make slime we need only a few ingriedients:

Borax
Glue
Food Coloring
Water

Procedure:

Mix water and a spoonful of borax

Mix glue, food coloring, and a splash of water

Mix borax solution with glue mixture

Look at how gross it becomes!

We then experimented separately by seeing how changing the amounts of different experiments change the type of slime we got.

We learned that slime is a polymer, that means that the molecules are connected like a chain, keeping them apart and together at the same time. Solid molecules stay closer together, and liquids further apart.

Some cool stuff our slime did:

It bounces!

If you squish it flat, it expands back out!

It can stretch!

It can rip!

Jack: I want to know what happens when it gets cold, so I'm putting mine in the freezer.

Mina: Slime is really fun to play with and squish!

Anna: I'm saving two samples, and I'm going to add a drop of water to one daily and see how it changes from the other one. Also, I wonder if we can use slime instead of dirt. I want to try planting seeds in slime and see if I can grow something. 

Thanks for checking this experiment out, it was a lot of fun!