Year 6 - Physical / Chemical Changes & Solubility

What is a chemical change?

• Forming a new substance

• When two or more substances combine to make a greater one

• When two or more substances combine to make a new chemical substance

• Combing substances

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 composition.

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

Which of the following tells you that a chemical change MAY have occurred?

• Change of shape

• Melting

• Evaportation

• Change in color

Which of the following IS a clue that a chemical change has occurred? 

• State of matter change
• Size Change
• Change in temperature
• Shape change

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Is Gatorade powder dissolving in water physical or chemical change?

• Physical 
• Chemical

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Is mold growing on cheese a physical or chemical change?

• Physical 
• Chemical

Is making orange juice a physical or chemical change?

• Physical 
• Chemical