The way scientists form a hypothesis is there is something called the scientific method. You established your question or problem first. Then you research it. You take your hypothesis, theory, or prediction of what is going to happen from your research.
This example is an controversial matter because melting an candle is considered as both physical change and chemical change because no new substances were made by melting an candle. The final answer is C.
Answer:
C. Extinctions have occurred many times throughout the Earth's history.
Explanation:
Answer:
C
Explanation:
an impure substance made through chemical process
