Anything that has mass (weight) and takes up space.
It is MATTER
MELTED ICE ?
physical change
Is rust an example of a chemical change? why ?
What is YES? You cannot change rust back into the metal is was before; therefore, it is a chemical change.
These are the characteristics of an object and you CAN use your senses to identify them.
PHYSICAL PROPERTIES
FREMINTATION PROCESS
chemical change
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
Name a food that is an example of a physical change.
SUGAR SOLUTION
Explain how water could be an example of a physical change.
freezing and melting water
Evaporation and condensation water
True or False. Turning peanuts to peanut butter is an chemical change ?
it is FALSE? To make peanut butter, you grind up roasted peanuts, so nothing new is being created.
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 when it precipitates, to a gas when it evaporates, then forms back into a liquid when it condensates. 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 chemical to produce large volumes of a hot gas that propel the rocket into space?