1. After looking at the diagram, what role do you think blood plays in the human body?

The scientific method is limited to investigating physical phenomena that are which of the following? select all that apply. observable repeatable falsifiable unique measurable

Which does not describe a physical change happening to water? water evaporating in the sun water reacting with nitrogen gas water freezing and being broken apart with a knife water heating up on a stove

Experiment for carbon dioxide is essential for the process of photosynthesis and to prove that oxygen is produced during photosynthesis a.write laboratory report about the above experiment b.use the following format •introduction •aparatus •method •discussion •conclusion