Your teacher wants to design an experiment to see how the amount of water plants receive affects growth. 1. What type of graph would you use to show your data collected? (think about if your data is quantitative or qualitative).


2. List two necessary constants.

Second, in the collection of data in an experiment using the scientific method, there are two types of observations, qualitative and quantitative.

The scientific method

Make an observation or observations.

Ask questions about the observations and gather information.

Form a hypothesis — a tentative description of what's been observed, and make predictions based on that hypothesis.

Test the hypothesis and predictions in an experiment that can be reproduced.

Explanation:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

the temperature of the gas, in k, not celsius.