EVERYDAY SCIENCE

Detailed explanation-1: -Food color is dropped into water to give it color. Physical because color is added and there was no reaction or energy used. Chewing food to break it down into smaller particles represents: Physical because the food is just being broken down.

Detailed explanation-2: -Adding food coloring to water causes a change in color. The pigment molecules from the food coloring dissolve into the water and cause the color change. This is a physical change. Since no new substances are produced, no chemical reaction has taken place.

Detailed explanation-3: -Common evidences of a chemical change include a change of color, odor, temperature, the formation of a gas, or a precipitate A physical change occurs when there is a change in physical properties of a substance but not chemical compostion.

Detailed explanation-4: -The color is considered the physical property because it is based on the properties such as absorption, reflection, and emission of the light spectra.

Detailed explanation-5: -A change in color is not always a chemical change. If one were to change the color of a substance in a non-chemical reaction scenario, such as painting a car, the change is physical and not chemical.