Is anyone here? I need help if you are there!?!

You are planning an investigation that explores the properties of matter. Which of the following will help you discover a physical property?

Experiment: place a powder into a beaker that contains a liquid/Result: the beaker gets hotter

Experiment: place a powder into a beaker that contains a liquid/Result: the solid dissolves into the liquid

Experiment: place a powder into a beaker that contains a liquid/Result: the mixture begins to fizz and bubble

Experiment: place a powder into a beaker that contains a liquid/Result: the mixture catches fire and burns down the lab