Flame Test by Jessica Dang

What is it that you are doing?

17dangjv021 — 2013-10-18 20:25:31 UTC

Jessica and I put popstick filled with a chemical into a bunsen burner flame, and observed the color that the chemical made.

What happened in your experiment?

17wongbt287 — 2013-10-18 20:26:32 UTC

What happened in my experiment was when I put a popstick filled with chemicals in a Bunsen burner, the flame changed the colour because of a chemical reaction ( the electrons got excited).

Strondium

17dangjv021 — 2013-10-23 20:07:03 UTC

Calcium

17dangjv021 — 2013-10-23 20:13:42 UTC

Lead

17dangjv021 — 2013-10-23 20:16:59 UTC

Why does this happen

17wongbt287 — 2013-10-24 01:51:13 UTC

The color change of the flame happens because of the chemicals in the popsicle stick. When the chemicals meet the fire, the electrons jumps from the ground state to the excited state and then goes back to ground state which makes the color of the flame change temporarily (that's when we see the color).

Determining our Unknown

17wongbt287 — 2013-10-24 02:16:35 UTC

The color of the unknown chemical was orange. Brandon and I concluded that the unknown was lithium. The chemical also made most of the flame orange which was another way we determined the unknown chemical was lithium.

Lithium

17dangjv021 — 2013-10-25 01:22:04 UTC

Copper

17dangjv021 — 2013-10-25 01:32:29 UTC

How did you do it? (Google Drawing

17wongbt287 — 2013-10-25 02:26:22 UTC

I did the experiment by lighting the bunsen burner and putting the chemical filled popsicle sticks into the flame. https://docs.google.com/drawings/d/1XmaH2_fxqMu3BNKt5l_iL-YnCnbn6kKTk1-ZlKZQj_U/edit?usp=sharing

Bromine

17wongbt287 — 2013-10-25 02:36:48 UTC

Potassium

17wongbt287 — 2013-10-25 02:42:51 UTC

Sodium

17wongbt287 — 2013-10-25 02:44:00 UTC

Unknown

17wongbt287 — 2013-10-25 02:44:18 UTC

(Lithium)

ESLR

17dangjv021 — 2013-10-25 03:05:51 UTC

The type of ESLR for this experiment that Brandon and I did was we were both responsible members of society which means we both work well with others, and we both demonstrate a positive work ethic by working together. We are also effective communicators because we took pictures, we organized with each other of who is doing what and we demonstrated writing and speaking by talking with each other and writing the colors that came out of the flame. Last but not least, we are critical thinkers because we used a website to post what we did and how we did this experiment, and we also applied the knowledge to solve problems by observing the colors that we see and matching it up.