Is rust an example of a chemical change?
What is YES? You cannot change rust back into the metal is was before; therefore, it is a chemical change.
Name something that is made of matter in this room.
Anything!
You use these to help you identify the physical properties.
What are YOUR SENSES?
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
Name the 3 types of matter.
What are SOLID, LIQUID, GAS?
Name a food that is an example of a chemical change and explain why.
What is a cake, because you cannot turn a cake back into the eggs, flour, sugar, etc. that you mixed together?
These molecules can move freely and will take the shape of any container you put them in.
What is a LIQUID?
True or False. Turning peanuts to peanut butter is an chemical change.
What is FALSE? To make peanut butter, you grind up roasted peanuts, so nothing new is being created.
These molecules move rapidly and freely whereever there is open space.
What is a GAS?
CHALLENGE (not a quiz question) Explain how a rocket launch is an example of a chemical change.
What is the fuel combines with another chemcial to produce large volumes of a hot gas that propel the rocket into space?
Identify 1 example of a solid, liquid, and gas.
What is Solid- desk, book; Liquid- water, lemonade; Gas- helium, air?