Oobleck the Mystery Goop

Name ______Oobleck – The Mystery Goop Problem Statement 1. What is an observation? 2. What do you put in an observation? 3. Why are observations made? 4. What do you need to use to make observations? 5. What is a qualitative observation? 6. What is a quantitative observation?

Terms Observation, qualitative, quantitative, nontoxic, senses

Materials Cup with oobleck, wax paper, Solution A, plastic knife, penny, toothpick

SAFETY RULE: OOBLECK IS SAFE TO HANDLE AND IS COMPLETELY NON-TOXIC.

Procedure

PART I 1. Observe the oobleck in the container (DO NOT REMOVE FROM THE CONTAINER). Make observations about the mystery goop and record the observations in the chart. Observations should be quantitative and qualitative. Be sure to use all your senses, not just the sense of sight, to make observations. Fill in the following chart. OOBLECK OBSERVATIONS Type of Observation (Qualitative Observation or Quantitative) 1. 2. 3. 4. 5. 6.

PART II 1. With a QUICK jabbing motion, try to thrust your finger into the solution. Record your observations: Observation = ______2. Now, slowly lower your finger into the solution. Record your observations: Observation = ______3. Place a small amount of oobleck on the sheet of wax paper provided and record your observations: A. Describe the appearance of the oobleck on the wax paper. Record your observations: Observation = ______B. Describe what happens when you move the paper. Record your observations:

Observation = ______

C. Tap the oobleck with your stirrer. Describe what happens. Record your observations:

D. Push the oobleck around on the paper with the edge of your stirrer. Be careful not to rip the wax paper. Record your observations:

E. Separate the oobleck into two portions. Carefully bring the two “globs” of oobleck closer and closer together on the paper. Record your observations:

4. Lay the flat side of the stirrer on the surface of the oobleck. Now pick it up rapidly. Record your observations:

5. Place a penny on top of the oobleck. Record your observations:

6. Place a toothpick on top of the oobleck. Record your observations:

7. Return the substance to its original container (cup). Record your observations:

8. Slowly add 10-15 drops of solution A to the oobleck and stir with the stirrer. Try to obtain similar thickness. This should make the substance look similar to melted ice cream. Record your observations:

9. What do you think the oobleck could be? Oobleck is ______

10. At the end of the lab, make sure your table is clean (if not, wipe it off). Wash off the penny and plastic knife. Return them and the bottle of Solution A to a place designated by your teacher. Throw out the cup of Oobleck, the wax paper, and the toothpick. Wash off your hands.

Conclusion Answer the six problem questions from the start of the lab in complete sentences (formed into a paragraph) on a separate sheet of paper and staple it to this page.