Use the drop-down menus to match each part of the scenario to the correct scientific practice.

1.Mike measures the growth of all six plants after one month.

2.Mike grows plants A, B, and C in the sun and plants D, E, and F in the shade.

3.Mike presents his findings at the school science fair.

4.Mike wonders, "Does the amount of sunlight a plant gets affect its size?"

5.Mike writes that more sunlight allows plants to make more food and grow bigger as a result.

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use