1. How are solutions different from mechanical mixtures? how are they similar?
Solutions:a homogeneous mixtures of more than one substance.
Mechanical Mixture: is a heterogeneous mixture of more than one substance.
Similairities: both mixtures of two or more substances


2.Which viles containe materials that were difficult to classify? and why?
#1, 5, 8, 10 et 11
Because theywere similar to other substances, without many noticable differences.

Observation: classify different unknown substances, you can look at the color, density, and the type of mixture to find a difining characteristic.

Changes: more of a substance so its easy to see and lids that are easy to move in order to smell the substance.

Julie and Ashlea :)