Vocabulary
Anything that has mass (weight) and volume (takes up space).
What is MATTER?
Is a melted popsicle an example of a physical change?
What is YES? You can melt and refreeze a popsicle and it will still be a popsicle.
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.
True or False. Air is matter?
What is TRUE?
You use these to help you identify the physical properties.
What are YOUR SENSES?
These are the characteristics of an object and you use your senses to identify them.
What are PHYSICAL PROPERTIES?
Is Alka-Seltzer and water an example of a physical change?
What is NO? When you mix Alka-Seltzer and water, bubbles form, which indicates a chemical change as taken place.
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change, change in smell, change in taste, formation of a precipitate, production of light?
Name the 3 types of matter.
What are SOLID, LIQUID, GAS?
Name 2 physical properties of ice.
What are cold, hard, solid, wet, etc.?
Type of change where a new substance is created.
What is a CHEMICAL CHANGE?
Name a food that is an example of a physical change.
What is a salad or trail mix?
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?
Name 2 physical properties of water.
What is liquid, wet, odorless, etc.
A type of change where the substance stays the same, but size and shape may change.
What is a PHYSICAL CHANGE?
Explain how water could be an example of a physical change.
What is freezing and melting water to and from ice is an example of a physical change?
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 where ever there is open space.
What is a GAS?
The scientific term for something that floats.
What is buoyant?
This type of matter keeps a definite shape.
What is a SOLID?
CHALLENGE (not a quiz question): Explain how the water cycle an example of a physical change.
What is YES, 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 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?
CHALLENGE (not on quiz). How can we can separate sand from iron fillings.
What is with a magnet?