Use the information below to answer questions 4, 5, and 6.
Jia is preparing to cook a family dinner, and she begins by gathering ingredients for the main course and dessert. She realizes that most ingredients go through both physical and chemical changes as they cook.
1
1
1
Question 7
7.
Julia cuts down a candle to make it shorter to fit inside a lantern. Then she lights the candle. Describe at least one change that occurred and then explain whether this change is physical or chemical.
Sentence Starter -
"One change is ____________. This is a ____________ change because ______________."
If your answer is not written in complete sentences, you will have points removed from your score.
What kind of change is happening in the picture below?
Chemical
Electrical
Thermal
Physical
What kind of change is happening in the picture below?
Electrical
Physical
Chemical
Thermal
Categorize the observations with the type of change they usually go with
A change in smell
The substance bubbles when another substance is added to it
A change in shape
A change in state/phase (Ex. An ice cube melts into water)
Physical Change
Chemical Change
Question 4
4.
Question 5
5.
Question 6
6.
One of the ingredients for her main course undergoes physical changes. Which of the following is a PHYSICAL change?
cooking eggs
grilling hamburger
baking bread
boiling water
For dessert, she prepares to bake a delicious apple pie. During one of the steps, she notices an example of a CHEMICAL change. Which one is it?
softening butter
folding a sheet of aluminum foil
heating sugar to make caramel
dicing an apple
As her family eats the delicious dinner, Jia remembers an important fact about the law of conservation of mass. What does she remember?