identify each as a pure substance or mixture. include a reason for each.

1. lettuce and tomato salad
2. air
3. wood shavings
4. pond water
5. chalk
6. sugar water

1. Mixture--Lettuce AND tomato
2. Mixture-- Air consists of many different elements and gasses
3. Pure-- You aren't changing the substance of wood by shaving it, but if you were thinking from a makeup level it would be a mixture to begin with
4.Mixture-- There is more than just water in pond water...bacteria and such.
5. Not sure--I might say pure but I don't know for sure
6. Mixture-- Sugar AND water

I’m not sure about this but i think that it’s c