1.Please complete “Physical Changes” Exit Ticket and then start Thursday: (10-13-16) Warm Up = 1.Please complete “Physical Changes” Exit Ticket and then start 2. Study “Formation Of A New Substance” Vocabulary in Science Journal 2. “Chemical Properties” Activities and Notes
Lesson Objective: You will be able to define a chemical change AND be able to list out evidence that a chemical change has occurred.
Evidence: 1. Gas production. (Bubbles)
Evidence: 3. Formation of a precipitate. -Precipitate = a solid.
Some common examples of chemical changes include…
-Rusting: Water and oxygen interact with metal to form a new substance, rust!
Prove you got it!!
During a chemical change a – A – new substance with new properties are formed. B – no new substance is formed. C – new substance with the same properties as before is formed. D – nothing happens.
Which of the following is NOT evidence that a chemical change has occurred? A – color change. B – gas production. C – temperature change. D – change in state of matter.
Which of the following is an example of a chemical change? A – Water is boiled and evaporates. B – Sugar dissolves in water. C - Two liquids are mixed, and a solid substance forms. D - A piece of paper is cut into many small pieces.
What evidence would indicate that a new substance is produced? A - The tablets dissolve in water. B – The water becomes murky. C – The water rises. D - Bubbles are given off.
Awesome Examples of Chemical changes
Practice