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- 1. Multiple Choice
What vocabulary term is being described: Unique characteristic that helps identify a substance.
matter
substance
property
product
- 2. Multiple Choice
When calculating _____ you are determining the mass in a set volume of a substance.
melting point
solubility
weight
density
- 3. Multiple Choice
_________ is when on substance is able to dissolve in another.
phase change
substance
density
solubility
- 4. Multiple Choice
A ____ is made of 2 or more substances that DO NOT chemically combine.
molecule
mixture
substance
property
- 5. Multiple Choice
Something is considered a ________ when it is made of one type of material all the way through. An example could be water, chalk, vinegar, or copper.
molecule
chemical
substance
solvent
- 6. Multiple Choice
If you heat 1 tablespoon and 1 stick of butter, the amount of butter is different, but the ______________, or the temperature at which both samples of butter will begin to change to a liquid will remain the same.
freezing point
physical change
chemical change
melting point
- 7. Multiple Choice
Ice can change from a solid (ice) to liquid (water) to gas (water vapor). What vocabulary term does this describe?
chemical reaction
phase change
melting point
boiling point
- 8. Multiple Choice
According to scientific principle #6 properties (denstiy, hardness, melting point, solubility) of a substance will:
change because it isn't possible to stay the same if the amount changes
stay the same ONLY if the amount of the substance is the same
stay the same, even if the amount of the substance is different
change based on the amount of the substance present
- 9. Multiple Choice
Scientific principle #6 states: properties of a given substance are the same regardless of the amount of the substance. Based on this scientific principle, which options below will not change if the amount of a substance is increased?
melting point of the substance
volume of the substance
mass of the substance
density of the object
solubility of the substance
- 10. Multiple Choice
A phase change IS NOT a chemical reaction. Choose the options that support this claim. You may choose more than one.
The substance are mixed together and keep their properties
The atoms making up the molecules are rearranged creating new substances
The atoms and molecules are mixed together BUT do not create new molecules
The atoms are rearranged creating a new product with a different arrangement of atoms
- 11. Multiple Choice
When a substance goes through a phase change ___.
molecules are rearranged in some of the substances
molecules rearrange making new substances
a chemical reaction occurs
the atoms making up molecules are not rearranged
- 12. Multiple Choice
When 2 or more substances are mixed together and the resulting substances properties HAVE NOT changed a chemical reaction has occurred.
True
False
Maybe
- 13. Multiple Choice
Mixing kool-aid powder and water together makes a new substance.
True
False
- 14. Multiple Choice
How can we determine if 2 unknown substances are the same or different substance?
observe the size of each substance
observe the shape of the substances
test properties of the substances
make a hypothesis, educated guess
- 15. Multiple ChoiceBoiling point is a point at which liquid turns in to..solidliquidmoltengas
- 16. Multiple ChoiceIf I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?20 grams0 grams27 grams10 grams
- 17. Multiple ChoiceStanley left an ice cube on his kitchen counter. An hour later, Stanley observed that the ice cube melted. Which statement best describes this change?Ice melting is a physical change because a new substance is created.Ice melting is a chemical change because a new substance is created.Ice melting is a chemical change because it may be reversed.Ice melting is a physical change because it may be reversed.
- 18. Multiple Choice
The faster molecules move,the higher the temperaturethe less temperaturethe same temperatureI don't know - 19. Multiple ChoiceThe slower molecules move,the higher the temperaturethe less temperaturethe same temperatureI don't know
- 20. Multiple Choice
Which letter represents particles in solid form?
A
B
C
D
E
- Answer choicesTagsAnswer choicesTags