Matter and Energy Unit 1 Lessons 3-4

Is glass breaking a chemical or physical change?

• chemical
• physical

Is burning wood a chemical or physical change?

• chemical
• physical

Is a a rusting bicycle a chemical or physical change?

• chemcial
• physical

Is melting ice a chemical or physical change?

• chemical
• physical

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Is frying an egg a physical or chemical change?

• chemical
• physical

Which is a chemical change?

• freezing fruit juice
• slicing a potato
• boiling water
• copper metal turning green

Salt dissolves in water

• physical Change
• chemical change

what is the definition of physical change?

• any change that results in the formation of new chemical substances. 
• rusting
• changes affecting the form of a chemical substance, but not its chemical identity.

• any property that is measurable, whose value describes a state of a physical system

What is a chemical change?

• How two chemicals react with one another when combined

• A property that we can measure or observe with our 5 senses or other tools

• When two chemicals react with one another to form a new substance

• When a change occurs but it does not result in the formation of a new substance