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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The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.