Problem: How can you form mixtures?

Materials: four plastic glasses, tap water, teaspoon, salt, powdered milk, oil, pebbles

Procedure:

1. Fill the four glasses with water.
2. Put a teaspoon of salt in one glass. Stir. Label it as "Mixture A."
3. Put a teaspoon of powdered milk in another glass. Stir. Label it as "Mixture B."
4. Put a teaspoon of oil in the third glass. Stir. Label it as "Mixture C.”
5. Put the pieces of pebbles in the fourth glass. Stir. Label it as "Mixture D."
6. Leave the four set-ups for about 1 minute. Observe each set-up.
7. Compare the results and fill in the table below.

Mixture(Before mixing)
A
B
C
D

Phase after Combining the Substances (Solid, Liquid, Gas)
A
B
C
D

Can you still distinguis the components? (Yes or No)
A
B
С
D​