WorksheetsRevision for the final exam
Total questions: 50
Worksheet time: 25mins
A clear juice is a ……………
Solution
Mixture
Solute
Solvent
Fresh squeezed orange juice is a ……
Mixture
Solution
Solute
Solvent
We can use …………… to separate orange pulp from the orange juice.
Magnet
Physical properties
Filter paper
Evapou
We can separate the solutions easily
True
False
Is a mixture in which substances are spread out evenly and don’t settle to the bottom of the container
Mixture
Solution
Iron ore
Solute
We can make solids dissolve faster by
Grinding
Stirring
Heating
Baking
The substance that is dissolved in the solution is
Solute
Solvent
Solution
Ore
The substance in which the solute is dissolved is
Solute
Solvent
Solution
Mixture
Two liquids can make a solution
True
False
Water contains dissolved oxygen and carbon dioxide
True
False
When different materials are placed together but each one keeps its own properties this is called
Solution
Mixture
Physical change
Chemical change
Some mixtures cannot be easily separated
True
False
Iron ore is a rock that is a
Solution
Mixture
Solute
Solvent
To separate the iron from the other components in the iron ore we need
A lot of energy
A magnet
Small amount of energy
A strainer
A copper penny combines with oxygen in the air to form
Rust
Green copper oxide
Curds
Gas bubbles
A copper penny combines with oxygen in the air to form a green copper oxide during a
Chemical change
Physical change
Are solid pieces of fresh cheese
Curds
Rust
Copper oxide
Is a soft stringy cheese
Mozzarella
Gouda
Is an example of an aged cheese
Mozzarella
Gouda
The chef adds ……….. to the whole milk to make fresh cheese
Lemon juice
Copper and oxygen
Water vapor
Rust
Making cheese is
A chemical change
A physical change
Rusting is a
Chemical change
Physical change
Rusting happens when …………….. combines with oxygen in the air to form rust
Copper
Iron
Whole milk
Charcoal
The mass stays the same before and after any change
True
False
States that in any physical change or chemical change the mass of the matter doesn’t change
Law of conservation of matter
Chemical change
Physical change
Rust
During the chemical change the particles of the substance…………… to form new substances
Rearrange
Destroy
Freeze
Melt
The change that produces one or more new substances
Physical
Chemical
Burning charcoal is
Physical change
Chemical change
Takes place when a liquid becomes a gas
Freezing
Melting
Evaporation
The boiling point of water is
100ْC
10ْC
0ْC
65C
Many substances have the same boiling point
True
False
Happens when a liquid becomes a solid
Melting
Boiling
Freezing
Freezing and melting occur at the same temperature
True
False
A liquid turns into a solid this temperature is called
Freezing point
Boiling point
The melting point of water is
0ْ C
100ْ C
60ْ C
20
When a solid turns into liquid this temperature is called
Boiling point
Melting point
Change in temperature is a
Physical change
Chemical change
When you put inflated balloon in the freezer it will
Expand
Shrink
The railroad tracks are warped and bent because the metal became hot and
Expanded
Shrank
Cutting paper, stretching a rubber band, broken glass, and melted juice all are examples of
Physical changes
Chemical changes
The mass before and after the physical change is
The same
Smaller
Bigger
Is the change in some properties of the matter but it doesn’t form a new kind of matter
Physical change
Chemical change
We can detect the presence of a colorless gas by seeing it
True
False
A form of matter that doesn’t have definite shape or definite volume
Solid
Liquid
Gas
Has a definite volume but doesn’t have a definite shape
Solid
Liquid
Gas
Can flow from one place to another unless something holds them in place
Solids
Liquids
Gases
Water in the waterfall rushes down because nothing is stopping it
True
False
Has a definite shape and volume
Solid
Liquid
Gas
The change in the states of matter depends on the change in
Temperature
Size
Color
Texture
There are………….. states of matter
1
3
5
7
