Silly Putty prac

Today we created Silly Putty. Is it a solid or liquid? When mixing the ingredients together, why add more borax to thicken the product rather than PVA glue?

Changes of state

Today we discussed Changes of State, specifically, solid to liquid, liquid to solid, liquid to gas, gas to liquid, and solid to gas.
Concepts boiling point and melting point were also discussed. We will follow this lesson up with a lab prac on Ice to Water to Steam.

Fluids

Something I learnt Today:
Anything that flows, ie. gases and liquids are in fact classified as a fluid.

Thank-you, TB

When is glass glass?

Great chat in class today. Question raised by DS. When is glass glass? In it's solid form we know it as glass. Is it still called glass in it's liquid form when it is being blown?