Subject: How can kindergarteners make slime at home and explanations

My 6 year old son wanted to make slime at home.  His hypothesis was that he 
would need to mix liquids with solids.  Of course this did not work.  I would 
like to give him and my class of kindergarteners a simple explanation of why it 
did not work. We know about polymer chains and chemical reactions to a young 
degree.  Do we have safe and necessary supplies at home or school? What are 
some simple polymers and what would we need to link them together to make 
slime?  

Re: How can kindergarteners make slime at home and explanations