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- 1. Multiple Choice
What kind of properties can only be observed when a substance changes into a different substance?
physical properties
chemical properties
- 2. Multiple Choice
Properties that can be observed without changing the identity of the substance.
Physical
Chemical
- 3. Multiple Choice
Which of the following is a sign that a chemical reaction has occurred?
change in shape
melting
formation of a gas
dissolving
- 4. Multiple Choice
Is melting butter for popcorn a chemical or physical change?
chemical
physical
- 5. Multiple Choice
A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?
Texture
Temperature
Shape
Mass
- 6. Multiple ChoiceWhich of the following is NOT an example of a physical change?crumpled paperpencil sharpeningshrunken clothingrust
- 7. Multiple ChoiceFreezing Juice?Physical ChangeChemical Change
- 8. Multiple ChoiceA change where one or more new substances are created.Physical ChangeChemical Change
- 9. Multiple ChoiceChange in color is a physical change.TrueFalse
- 10. Multiple ChoiceChange in density is a physical change.TrueFalse
- 11. Multiple ChoiceFizzing, foaming, and burning are all examples ofChemical changePhysical change
- 12. Multiple ChoiceRust on an iron bar is an example of chemical change.TrueFalse
- 13. Multiple ChoiceWhat kind of properties can only be observed when a substance changes into a different substance?physical propertieschemical properties
- 14. Multiple Choice
A mixture is the result of a physical change because...
The parts can be separated
A new substance is made
There is a chemical reaction
One part of the mixture disappears
- 15. Multiple ChoiceWhich of these is a result of a chemical change?A mixtureA solutionA new substanceMelting or freezing
- 16. Multiple ChoiceWhich of these is a result of a physical change?A new odorA new gasA new chemical substanceA solution
- 17. Multiple ChoiceWhich of these does NOT happen during a chemical change?Atomic bonds are formed or break apartNew substance(s) are formed with different chemical propertiesThe number of atoms in the reaction stays the sameThe chemical properties of the beginning substance(s) are the same as those of the end product(s)
- 18. Multiple Choice
A copper penny turning greenish after a few years is an example of a _____________________.
Chemical Change
Physical Change
- 19. Multiple Choice
Which of the following is not an example of a physical change?
crumpled paper
pencil sharpening
shrunken clothing
sour milk
- 20. Multiple Choice
Which of the following is a physical change?
Getting a haircut
Rusty metal
Sour milk
A compound
- 21. Multiple Choice
Ripping up paper is a ________.
Chemical Change
Physical Change
- 22. Multiple Choice
A change in phase is a _____________.
Chemical Change
Physical Change
- 23. Multiple Choice
Bubbles form when two or more substances are combined is known as a _______________.
Chemical Change
Physical Change
- 24. Multiple Choice
Change in size is a _________________.
Chemical Change
Physical Change
- 25. Multiple Choice
Oh no! An explosion occurred, that is an example of a ___________.
Chemical Change
Physical Change
- 26. Multiple Choice
To go back to the substances original states is not possible or you would need to use chemicals.
Chemical
Physical
- 27. Multiple Choice
On a camping trip, Mrs. Benavides roasts a marshmallow in the campfire. She notices that the roasted marshmallow smells and tastes differently than the uncooked marshmallows. What change has taken place, and how does Mrs. Benavides know?
a chemical change because the marshmallow changed in taste, color and smell
no change because the marshmallow is not a new substance
only a physical change because the marshmallow changed in size
a chemical change because the marshmallow only changed in pH level
- 28. Multiple Choice
An apple will turn brown if left in oxygen. What kind of reaction is it?
Physical Reaction
Chemical Reaction
- 29. Multiple Choice
Acid in tomato sauce can corrode aluminum foil. What type of reaction is this?
Physical Reaction
Chemical Reaction
- 30. Multiple Choice
Is glass breaking a chemical or physical change?
It is a chemical change.
It is a physical change.
- 31. Multiple Choice
Is hammering wood together to build a house a chemical or physical change?
Chemical Change
Physical Change
- 32. Multiple ChoicePhysical properties areproperties that can be observed without changing the identity of the substanceproperties that describe how a substance changes into a completely different substance
- Answer choicesTagsAnswer choicesTags