Physical changes are those that do not alter the chemical composition of a substance. I hate to give out homework answers, but here's a push in the right direction: what in your kitchen could change a glass of water in a way that is reversible, and would not chemically alter it? Consider things like mixing with non-reactive substances and heating. There are many more that are probably within arm's reach.
Yes
no, because it is still the same material and nothing physical has changed about it except its shape, wich dsent count as a property change
Yes, evaporation of milk is a physical change. It involves the transformation of liquid milk into water vapor, which is still a form of water. The chemical composition of the substance remains the same, only its physical state changes.
Milk is normally a liquid(a suspension of cream droplets in water), by freezing it milk changes from a liquid to a solid. This is a physical change, the substance is still milk, however it is no longer a liquid, it has changed into a solid.
A carton of milk going sour is a chemical change. This process involves the growth of bacteria that produce lactic acid, altering the milk's composition and resulting in changes to its taste, smell, and texture. Unlike physical changes, which do not affect the chemical structure of a substance, souring milk irrevocably transforms it into a different substance.
Pouring milk into a glass is a physical change. This is because the milk remains the same substance (liquid milk) even after it is poured into the glass.
White color Liquid state Translucency Cold temperature
Yes
no, because it is still the same material and nothing physical has changed about it except its shape, wich dsent count as a property change
Milk is a liquid,so it takes the shape of a container.(properties of a liquid)
Physical - Breaking of glass Boiling of water Melting of ice Cutting of vegetables Chemical - Burning of paper Cooking of food Rusting of iron Souring milk
A standard drinking glass holds about 250 ml of liquid. There are four standard glasses of milk in a liter.
Physical changes in matter are when physical properties are changed. Some physical properties are size and color. When a physical change in matter occurs, the material may have changed size (gotten smaller) due to weathering and erosion. Chemical changes are when the chemical composition of a substnce is changed. For example a chemical change would be iron turning into rust due to the process of oxidation
A glass of milk is a white, opaque liquid with a smooth texture. It has a slightly sweet taste and a cool temperature when fresh. Milk is a colloidal suspension of fats, proteins, and minerals in water.
Yes, evaporation of milk is a physical change. It involves the transformation of liquid milk into water vapor, which is still a form of water. The chemical composition of the substance remains the same, only its physical state changes.
Milk is normally a liquid(a suspension of cream droplets in water), by freezing it milk changes from a liquid to a solid. This is a physical change, the substance is still milk, however it is no longer a liquid, it has changed into a solid.
When milk turns sour, it is a chemical change because the bacteria in the milk ferment the lactose sugar into lactic acid, which changes the composition of the milk. This process cannot be easily reversed, making it a chemical change rather than a physical one.