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WorksheetsUnit 2: Properties and Changes of Matter - Test Review
Total questions: 10
Worksheet time: 5mins
Which is most likely a chemical property?
Oxidation state: the charge an atom has if it was bonded ionically to other atoms. Different oxidation states indicate different abilities to bond with other atoms.
Melting point: the temperature at which a solid turns into a liquid. Different substances have different melting points.
Density: the amount of a substance that fits in a certain volume. Different states of matter of the same substance can have different densities.
Conductivity: the ability to transfer electrical charges. Conductivity is different in different substances
Diana has just completed a reaction that had a chemical change. Which two changes could be evidence of this change?
odor and density
color and shape
color and odor
shape and density
Which is an example of a chemical change?
boiling water
melting butter
chopping onions
frying an egg
During a camping trip, Sierra collected dry branches and broke them into smaller pieces. She then placed the sticks in a fire pit and used a match to light the sticks on fire. Next, she propped a metal pan of water over the fire and heated it until the water boiled.
Which list correctly describes physical and chemical changes that occurred in this scenario?
physical change: breaking sticks
chemical changes: lighting the fire, boiling water
physical change: boiling water
chemical change: breaking sticks, lighting the fire
physical changes: lighting the fire, boiling water
chemical change: breaking sticks
physical changes: breaking sticks, boiling water
chemical change: lighting the fire
Which describes a value for density?
a value for volume, such as m3, divided by a value for mass, such as kg
a value for mass, such as kg, divided by a value for volume, such as m3
a value for distance, such as m, divided by a value for time, such as s
a value for time, such as s, divided by a value for distance, such as m
A log has a density of .8 g/cm³. What will happen to this log in freshwater, which has a density of 1.0 g/cm³?
It will move deeper.
It will decrease in density.
It will float.
It will sink.
Alai is comparing the physical property of two materials. He is hitting each with a hammer to observe what happens. What physical property of the materials is Alai most likely observing?
odor
hardness
conductivity
solubility
Lava is rock that has undergone a physical change and has liquefied. What is known about this change?
The lava gained mass.
The lava was burned into smoke.
The lava can cool back into rock.
The lava lost mass.
Juliana was late to physical science class and missed the beginning of the notes, including the title. These are the notes she took.
-Makes up everything
-Can be solid, liquid, or gas
-Is made up of atoms, or tiny particles that are the smallest unit of matter
What would be the best title for her notes?
Atoms
Matter
Mass
Weight
This chart shows what happens when each object is placed on a balance with a 10 kg weight on the other side.
Which statement is best supported by the information in the chart?
Object 1 is the heaviest object.
Object 3 is heavier than Object 1.
The weight is heavier than Object 2.
The weight is the heaviest object.
