At a school science lab, students made a material by mixing water, glue, and some borax under the supervision of the teacher. The material is a polymer in which borax cross-links the long-chain molecules. In 3-4 sentences, state two different ways in which you can communicate why the material the students made is liquid-like and moldable. Explain how to modify the recipe so that it gains solidity.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )