Chemistry
Chemistry, 11.07.2019 13:30, shira35

(01.01 mc) carlos is trying to determine how music affects the growth of bean plants. he hypothesizes that classical music will cause a plant to grow at a higher rate than no music or rap music. he grows nine bean plants in similar lighting, temperature, and soil conditions. three are exposed to classical music 24 hours a day, three are exposed to rap music 24 hours a day, and three are grown in complete silence. carlos measures the growth of the plants every day and finds that the plants all seem to have the same rate of growth. what is missing from carlos's scientific investigation? a. a specific hypothesis predicting a relationship between independent and dependent variables b. controlled variables to ensure only the independent variable is being changed c. experimental data collected regularly that can be recorded and analyzed d. research on what other scientists have observed and investigated on this topic

answer
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 23:00, DarcieMATHlin2589
Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom
Answers: 1
image
Chemistry, 22.06.2019 04:00, BaileyElizabethRay
Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ
Answers: 3
image
Chemistry, 22.06.2019 09:30, janetexcoelho
What does the mass of 0.7891 mol of ferric oxide (fe2o3)
Answers: 1
image
Chemistry, 22.06.2019 20:00, 20calzoy
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
Do you know the correct answer?
(01.01 mc) carlos is trying to determine how music affects the growth of bean plants. he hypothesiz...

Questions in other subjects:

Konu
Mathematics, 13.10.2020 22:01
Konu
Mathematics, 13.10.2020 22:01
Konu
Mathematics, 13.10.2020 22:01