PHYSICAL vs CHEMICAL CHANGE PHYSICAL PROPERTY A PROPERTY

PHYSICAL vs CHEMICAL CHANGE

PHYSICAL PROPERTY - A PROPERTY is the same as a characteristic. - Anything that you can see from direct observation. - The Physical Property of a substance includes: - Shape - Size - Color - Texture - Density

DESCRIBE THE PHYSICAL PROPERTIES OF A BASKETBALL: - Spherical - Orange - Bounces - Small bumps on surface - Black Lines & Writing

PHYSICAL CHANGE - Does not change the type of matter. - Nothing new or different is formed. - Could be a change in: - Mass - Volume - Density - Different state of matter

EXAMPLES OF PHYSICAL CHANGE: - Crushing an aluminum can. - Tearing a sheet of paper. - Painting a wall a different color. - Cutting a steak.

MAKING A MIXTURE: -2 or more types of matter (substances) mixed together. - Not in specific amounts. - Can be separated physically.

SEPARATING A MIXTURE

CHEMICAL PROPERTY - How a substance reacts with another substance. - Examples: - When water (oxygen) is added to a nail, it rusts. - When baking soda & vinegar are mixed, it forms bubbles.

CHEMICAL CHANGE -When a substance (chemical) changes into a new substance, having different physical & chemical properties.

- During a chemical change, atoms are re-arranged; atoms are not created or destroyed. - LAW OF CONSERVATION OF MATTER: - Matter is conserved; the type & amount of matter cannot change.

EVIDENCE OF A CHEMICAL CHANGE: - Forms a gas. - Forms a precipitate. - Change in color. - Absorbs or Releases energy.

QUIZ: Physical or Chemical change? 1. A piece of paper gets wet? physical 2. Two chemicals are mixed & a purple gas appears? chemical 3. You add green food coloring to a pancake batter? physical 4. Water freezes and becomes ice? physical 5. Batter placed in oven makes a cake? chemical