Question

name: dyllan date: period: 1. which of the following is the best definition of matter? a) anything that has color b) anything that takes up space and has mass c) anything that can be seen with the naked eye d) anything that moves 2. which is an example of something that is not matter? a) air b) water c) sound d) a rock 3. which of the following is a physical property? a) flammability b) reactivity with acid c) melting point d) rusting 4. which of the following is a chemical property? a) density b) color c) boiling point d) ability to burn 5. which of the following is a physical change? a) burning paper b) dissolving sugar in water c) iron rusting d) wood rotting

Explanation:

1. Matter is defined as anything that takes up space and has mass. Color, visibility, and movement are not defining characteristics of matter.
2. Sound is a form of energy, not matter. Air, water, and rocks have mass and take up space, so they are matter.
3. Melting point is a physical property as it can be observed and measured without changing the substance's chemical identity. Flammability, reactivity with acid, and rusting involve chemical changes.
4. The ability to burn is a chemical property because it involves a substance reacting with oxygen to produce new substances. Density, color, and boiling point are physical properties.
5. Dissolving sugar in water is a physical change as no new substances are formed. Burning paper, iron rusting, and wood rotting are chemical changes as new substances are produced.

Answer:

1. b) Anything that takes up space and has mass
2. c) Sound
3. c) Melting point
4. d) Ability to burn
5. b) Dissolving sugar in water