This is easy help mee

Sentence for Hypothesis: Each student gave a hypothesis and theorized which plant would grow the tallest during the study.

Explanation:

I have a hypothesis that the lead in normal pencils are aren't poisonous.

Explanation:

hope this works

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.  

i think tornado but not 100%