The smallest particle.
What is the Atom?
Is tearing paper a Physical Change?
What is YES? You still have paper.
Is rust an example of a Physical change?
What is No?
How many Atoms are in H2O?
What is 3?
a substance in which a solid, liquid, or gaseous substance is evenly distributed (or dissolved) within a liquid or sometimes a gas or solid
What is a Solution
Is burning wood an example of a physical change?
What is NO?
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
How many Atoms 2H2O2?
What is 8?
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?
How many Atoms are in 1-Hydrogen?.
What is 1?
A type of change where the substance stays the same, but size and shape may change.
What is a PHYSICAL CHANGE?
Is cooking eggs a Physical Change?
What is No. The inside has changed.
How many Hydrogen Atoms are present H2SO4?
What is 2?
a pure substance that is made up of one type of atom
What is a ELEMENT?
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 campfire is an example of a chemical change.
What is the wood burns and turns to ash?
Count the atoms and explain how you got your total using correct terms.
2H2SO4 and 2NaCl(H2O)2
What is 14 and 16? In the first you multiply by the coefficient then add. In the Second you multiply the subscript 2 that is outside the parentheses then Multiply everything by the coefficient and then add everything.
CHALLENGE (not on quiz). What property of a Chemical and Physical Change is the same?
What is Color Change?