Monday, March 9, 2015 Homework: Get Quiz signed Your Objective: To explore and make observations of four reactions. Table of Contents:Physical Changes Lab – 75R Do-Now (75L): Create a Circle Map where the middle is “Changes to Matter”. Homework: Get Quiz signed Agenda: Do-Now Physical Changes Lab Reflection 1

7L 7R 9/9/15 9/9/15 Physical/chemical changes Catalyst: Reflection: Physical Change Chemical Change What is a physical change? What is a chemical change? How can we tell that one has occurred? Reflection: 7L 7R

Lab Safety Do NOT taste ANYTHING Safety Goggles must be worn at ALL times No running or bumping Use kind words when asking for materials If there is an accident, let Ms. Salzburg know immediately ALL materials must be returned at the end of the period – do not take anything home.

Take the cards at your table and organize them into two categories. Card Sort Take the cards at your table and organize them into two categories. Evidence of a Physical Change Evidence of a Chemical Change Make sure you are collaborating with your team members and sharing ideas **I will call on each table to share out one item and their justification. (why did you classify your object as a physical or chemical change?)

How do we make new stuff out of old stuff?

Question of the Day: How can we tell that a physical change (or a chemical change) has occurred?

Safety Requirements Thermometer Do NOT touch the dry ice! Read all instructions carefully and follow exactly! Small spoonful, please!

8L 8R 9/9/15 9/9/15 Physical/chemical changes Catalyst: Reflection: Physical Change Chemical Change What is a physical change? What is a chemical change? How can we tell that one has occurred? Reflection: 8L 8R

Observations of the Before & After Texture Size Phase of Matter Shape Color Hardness Temperature Mass Volume Other?

8L 8R 9/9/15 9/9/15 Physical/chemical changes Catalyst: Reflection: Physical Change Chemical Change What is a physical change? What is a chemical change? How can we tell that one has occurred? Reflection: Physical change Chemical Change 8L 8R

The original matter can be recovered Physical Change The matter is the same The original matter can be recovered The particles of the substance are rearranged

8L 8R 9/9/15 9/9/15 Physical/chemical changes Catalyst: Reflection: Physical Change Chemical Change What is a physical change? What is a chemical change? How can we tell that one has occurred? Reflection: Physical change Chemical Change The matter is the same The original matter can be recovered The particles of the substance are rearranged 8L 8R

Chemical Change The matter is different The original matter cannot be recovered The particles of the substance are broken and rearranged to form new substances

8L 8R 9/9/15 9/9/15 Physical/chemical changes Catalyst: Reflection: Physical Change Chemical Change What is a physical change? What is a chemical change? How can we tell that one has occurred? Reflection: Physical change Chemical Change Can something be both a chemical and a physical change? Give an example to explain why or why not. The matter is different The original matter cannot be recovered The particles of the substance are broken and rearranged to form new substances The matter is the same The original matter can be recovered The particles of the substance are rearranged 8L 8R