WorksheetsEvidence of a chemical change lab: Exit Slip
Total questions: 10
Worksheet time: 5mins
Which is NOT evidence of a chemical change from one of the interactions we tested yesterday?
Odor or smell produced
A huge explosion
Formation of a gas
What was the chemical reaction from hydrogen peroxide and a potato?
Fire produced
A huge explosion
formation of a gas
Which was a physical property of vinegar?
Its ability to disintegrate substances
Its smell
It is flammable
Which of the following indicates a chemical change has occurred ?
Change in shape
Change in the state (ex: a solid, liquid or gas)
Change in temperature
How are changes in matter related to changes in energy?
Matter transforms into something brand new everytime it changes.
Matter is never lost during a change.
Matter starts as potential first.
What is the difference between a physical and chemical change?
Physical changes make things pretty, chemical changes make things ugly.
In a physical change a substance is altered but not transformed.
In a physical change a new substance is formed.
What is a common indicator of a chemical change?
Change in shape
Change in color
Change in size
Which of the following is a physical change?
Burning wood
Melting ice
Rusting iron
Which of the following is a physical change?
Burning wood
Melting ice
Rusting iron
What happens to energy during a chemical change?
Energy is created
Energy is destroyed
Energy is absorbed or released
