Steps of a scientific investigation include identifying a research question or problem, forming a hypothesis, gathering evidence, analyzing evidence, deciding whether the evidence supports the hypothesis, drawing conclusions, and communicating the results.
The first one is substance 3
The second one is Oxygen, Helium, and carbon dioxide
The third one is the oil floats on top of the water
Answer:
B
Explanation:
Not sure, but that one makes the most since
boiling point - condensation point
is the answer i would choose because it makes more scene
Answer:
C
Explanation:
This is a correct answer i think soo
