NEW
Font size
WorksheetsPhysical Science Ch.7
Total questions: 15
Worksheet time: 15mins
What is the definition of density?
the amount of mass in a given volume
the length of a certain mass
the shape of a certain mass
the amount of volume to a certain shape
Can mass be created or lost in a chemical change?
yes
sometimes
no
maybe
What is the term for the changing of a solid directly into a gas?
evaporation
condensation
vaporization
sublimation
What is the boiling point of water?
100°C
-195.8°C
357°C
0°C
Which are examples of chemical properties?
length and mass
flammability and reactivity
melting point and boiling point
color and shape
Which is an example of a change of state?
ice cubes melting
liquid filling a glass
paper burning
exposing photographic film
What moves in or out of a substance during a change of state?
matter
mass
temperature
heat
Which property is independent of the amount of a substance which is present?
mass
volume
length
boiling point
What is an example of a chemical change?
melting
boiling
burning
freezing
Matter takes up __________ and has __________.
space; heat
space; temperature
heat; temperature
space; mass
What is a feature of ALL substances?
They all share the same boiling point.
They all have the same mass.
They all have the same density.
They all have their unique properties.
How many atoms of hydrogen are in each molecule of this water?
4
2
3
1
What type of solution is saltwater?
heterogeneous
mixture
element
homogeneous
What is a reactant?
A substance used to fuel chemical reactions
The resulting substance of a chemical reaction
A substance added to stabilize a reaction
The substance present before a chemical reaction
What are physical methods like boiling and filtering used for when working with mixtures?
To separate them into substances.
To vaporize the mixture.
To increase the thermal energy within.
To determine the volume.
