Oobleck

Physical Properties / States of Matter

DEMO #2: Oobleck

Purpose:
To compare properties of new substance to originals.
To follow safety guidelines.
To identify substances using their physical properties and conclude their state of matter.

Materials:
beakers, graduated cylinder, wooden stick (to stir), medicine dropper, cornstarch, water, paper towels, safety goggles, lab apron

Procedure:
1. Mix 75.0% cornstarch and 25.0% water
(75.0mL of cornstarch and 25.0mL of water)
This is an estimate, you may need more or less water.

DATA:
List PHYSICAL PROPERTIES of each substance

( Use the chart on page 7 in your composition book to answer the statements below. )

It (circle) is / is not a solid because - ________________________________________
It (circle) is / is not a liquid because - ________________________________________
It (circle) is / is not a gas because - _________________________________________

Is Oobleck a solid, liquid or gas? ____________________________________________

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