CHALLENGE (not a quiz question): Explain how the water cycle an example of a physical change.
It is a physical change, because water changes from a liquid/solid during precipitation, to a gas when it evaporates, then forms back into a liquid when during condensation. Then the process repeats again with the same substance, WATER!
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?
Basically you see the flames from the rocket.
Identify 1 example of a solid, liquid, and gas within a school/classroom environment.
What is Solid- desk, book; Liquid- water,milk, juice; Gas- heat, air?
CHALLENGE (not on quiz). Two ways that you can observe physical and chemical properties.
What is quantitative and qualitative.