Borax Rocks:


In this activity, you will be making your own rock.  You will need the following items:


4 cup measuring cup

3 cups of hot water

9 tablespoons of borax

Small pieces of rock, shells, sand, gravel

A plastic cup or bowl

Overnight wait!


1. Pour three cups of hot water into the measuring cup and add the borax.  Be sure to completely mix the borax into the water.  It might be necessary to add more borax.  

2. Place your “sediment” into the cup or bowl.

3. Cover the “sediment” with the borax water.  

4. Place your container on a shelf and check it tomorrow.


The next day:

What did you observe?


What kind of rock have you made?