During a scientific investigation, which step will a scientist most likely perform first? O design an experimental procedure
o collect and organize data
O defend conclusions
o communicate results

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

In the water cycle , when does water undergo a chemical change