Move around the laboratory during Part I to make sure all students are working and that the cards are arranged in some pattern. I, cards should be placed in horizontal or vertical rows with consecutive numbers. All cards of the same color will be in the same vertical or horizontal row and numbers in the upper right hand corner will increase or decrease horizontally or vertically. Gas is given off. Indicator turns blue.
Potassium reacts fastest, lithium slowest.
Flame shows above globule of potassium. Part III Step 2 Calcium reacts vigorously in cold water, bubbles form, and tube heats up. The solution turns dark blue. Aluminum does not react in hot or cold water. Step 3 Solution turns orange-yellow.