Which of the following statements about matter is true? mass and matter are always the same. matter is made up of atoms and has mass. mass can decrease while matter increases. matter does not exist in the biosphere.

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

The slope of a velocity time graph over any interval of time gives the during that interval