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 10
10.
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.
Claim: What kind of change is happening in the picture below?
Chemical
Physical
Evidence: Which evidence from the image best supports your claim above?
A chemical change because a new substance formed
A chemical change because a new substance was not formed
A physical change because a new substance was not formed
A physical change because a new substance was formed
Question 3
3.
Question 4
4.
Which of the following are examples of PHYSICAL changes?
Melting ice
Rust forming on metal
Cutting hair
Burning wood
Categorize the observations with the type of change they usually go with
The substance bubbles when another substance is added to it
A change in state/phase
(Ex. An ice cube melts into water)
A change in shape
A change in smell
Physical Change
Chemical Change
Question 7
7.
Question 8
8.
Question 9
9.
Claim: What kind of change is happening in the picture below?
Chemical
Physical
Evidence: Which evidence from the image best supports your claim above?
A chemical change because a new substance formed
A chemical change because a new substance was not formed
A physical change because a new substance was not formed
A physical change because a new substance was formed
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?
