A characteristic of a substance that can be observed and measured without changing the identity of the substance is called a?

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters