The food you eat is changed chemically and physically in the digestive system. When you eat a sandwich, which step in the digestion process is a physical change? Saliva in your mouth mixes with food to make it more usable by cells.

Digestive juices from your liver break down fats contained in the food.

Liquid from your pancreas changes starch into sugar in your small intestines.

The walls of your stomach contract to turn the food from a solid to a thick liquid.
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"Saliva in your mouth mixes with food to make it more usable by cells.

Liquid from your pancreas changes starch into sugar in your small intestines".

Explanation:

I  think it is accually both of these to combined

clouds form

solid ice forms on leaves.

water droplets form on grass.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".