8th Period Physical/Chemical Change Test

Which of the following is an example of a chemical change?

• Iodine is added to corn starch and a color change occured
• Water boils to form a gas
• You mix sugar and salt together 
• You dissolve sugar in water 

Which of the following statements show a chemical change might have occurred?

• Changes state
• A gas given off
• Change in mass
• Change in volume 

Which is an example of a chemical change?

• mixing oil and water 
• Freeze water
• Smash a pumpkin 
• Rust forms 

A gas is given off when boiling water and when burning wood, why is burning wood a chemical change and boiling water not a chemical change 

• Burning wood produces a new substance but water does not
• Burning wood makes faster molecules than boiling water
• Burning wood produces a chemical and water is not
• Boiling water is an element and burning wood is a compound 

Which of the following is an example of a physical change?

• Cleaning a penny with vinegar and salt
• cutting a piece of wood in half
• Burning a piece of paper
• combining phenol red and baking soda

Which of the following is an example of a chemical change?

• Cutting a piece of wood in half 
• Melting butter
• Digesting food
• Freezing water 

Which of the following is the product of a chemical change?

• Smoke from a fire
• Ice
• sawdust
• sugar water 

What statement below lists the different ways we know a chemical change has taken place?

• change in state, odor, gas, precipitate 
• volume change, odor, gas, heat difference 
• mass change, odor, gas, heat difference
• Gas, odor, heat difference, color change, precipitate 

Which of the following statements describe a physical change

• precipitate, color change, heat change 
• gas, odor, heat change 
• change in mass, change in volume, change in state
• gas, color change, heat change 

what is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing clothes
• matter cannot be created or destroyed, only change form
• changes affecting the form of a chemical substance, but not its chemical composition.