Question: how to make slime without borax and starch?
Answer: Warm the Water. Warm the water in the saucepan. ... 
Mix in the Food Coloring. Pour the heated water into the bowl and add food coloring. ... 
Add the Cornstarch. Add the cornstarch a little at a time, at a slow and steady pace.
Mix Well. Blend the mixture until smooth. ... 
Add More Cornstarch As Needed. ... 
Keep the Slime Moist.