Weather 3 Snow Labs How clean, Mass of snow & Salt's Affect on Freezing Point

ade 8 STEM Three Weather Snow Lab
Lab 1
Middle Schools students will use their scientific skills to determine that snow is not as clean as most people believe. A very little setup time is required however a great deal of science will occur. Most students are shocked to see how many particles even freshly fallen snow contains.
This lab will also teach physical change, and illustrate the application of math in the lab. Students will determine that snow is much less dense than rain. One meter of snow equals only 10 to 15 cm of water.
Lab 2
Students will discover that snow has the same weight as water but more volume
Lab 3
How does salt affect the temperature of melting ice
Materials
2 Styrofoam cups
Scale
Funnel
Clean Snow
Dirty Snow
Scale
The third section is a reading for students to understand real-life issues with treating the roads with ice melt.