Properties Of Matter (Page 2 of 4) in pdf

Properties 2

Glurch

4. Making

a. Place 1 cm of white glue into the bottom of your cup.

b. Add 18 ml of laundry starch and stir with a straw or spoon. Have your partner

stir the glue as you add the starch. It should be very sticky!

c. Continue adding laundry starch (1-2 drops at a time) until you get a good glob

that is just a little bit sticky. Be careful not to add too much or it will be

stringy!

d. If it does get stringy, work in a little glue to get it back to the sticky stage. You

may have to add a drop or two of starch to finish it up.

e. Once the Glurch is formed, take from the cup and knead with your hands for

several minutes.

f. If it is too sticky (stays on your hands rather than in a glob), put it back in the

cup and continue adding drops of starch until you get it just right.

5. Investigate Glurch by performing the following tests:

a. Slow Poke Test – Slowly poke your finger into the slime.

b. Quick Poke Test – Quickly poke your finger into the slime.

c. Slow Pull Test – Slowly pull a piece of slime apart with your hands.

d. Quick Pull Test – Quickly pull a piece of slime apart with your hands.

e. Blob Test – Roll your slime into a ball and set it on a flat surface.

f. Bounce Test – Roll your slime into a ball and bounce it.

6. Record your observations in the data chart.

Oobleck

7. Making

a. Use the triple-beam balance to measure a 20 gram sample of cornstarch.

b. Add 15 ml of water to the cornstarch and stir with a straw.

c. If your Oobleck is too dry, add more water (a few drops at a time) and stir

slowly.

8. Investigate Oobleck by performing the following tests:

a. Slow Poke Test – Slowly poke your finger into the slime.

b. Quick Poke Test – Quickly poke your finger into the slime.

c. Slow Pull Test – Slowly pull a piece of slime apart with your hands.

d. Quick Pull Test – Quickly pull a piece of slime apart with your hands.

e. Blob Test – Roll your slime into a ball and set it on a flat surface.

f. Bounce Test – Roll your slime into a ball and bounce it.

9. Record your observations in the data chart.

M. Poarch – 2007

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Properties Of Matter Page 2