Answer:
mass and volume
Explanation:
Matter is anything that has mass and takes up space
The correct option is BY CONDUCTING EXPERIMENTS THAT EXPOSE THEIR PROPERTIES.
Scientific investigations are always ongoing in all parts of the world, scientists strive to build on existing knowledge by carrying out more experiments that are targeted at obtaining more information above that which is already known.
The first law. Planets orbit is an ellipse with the Sun at one focus.
