What kind of reaction feels cold to the touch?
Endothermic
The apple is red. Is it a physical or chemical property?
Physical Property
How many periods does the periodic table have?
7
What particle has a positive charge?
Proton
What kind of reaction feels hot to the touch?
Exothermic
When I take a piece of paper and burn it to ash, is it a chemical property or change?
Chemical change
How many groups does the periodic table have?
18
What element's symbol is K?
Potassium
Fireworks are an example of an _____________ reaction because...
Exothermic because they give off or release HEAT
A physical change is...
A physical change is when a substance's physical properties, such as shape, size, color, and state of matter change.
What is the definition of an exothermic reaction?
A chemical reaction that gives off / releases heat.
What is the evidence of a chemical change?
Chemical transition conditions: color change, solid forming, gas formation, smell change, change in temperature, or something on fire.
What is the definition of an endothermic reaction?
A chemical reaction that absorbs / brings in heat.
When is Mr. Rassette's birthday and how old is he?
July 25th and 26 years old.