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WorksheetsExploring Matter and Energy
Total questions: 20
Worksheet time: 10mins
A student has four objects: a metal spoon, a rubber ball, a wooden block, and a glass marble. Which two physical properties could the student use together to classify all four objects?
Color and taste
Mass and magnetism
Smell and temperature
Size and sound
A scientist measures the mass of a rock as 250 grams and its temperature as 22∘ C. Which statement best describes how these properties help classify the rock?
Mass shows if it is magnetic, and temperature shows if it will float
Mass and temperature are both measurable physical properties used to classify matter
Temperature tells if it is a solid, and mass tells if it is a liquid
Both properties determine if it is a mixture
A student places four objects in water: a plastic toy, a steel nail, a cork, and a marble. The cork and plastic toy float, while the steel nail and marble sink. What property is being tested?
Magnetism
Density
(relative density)
Physical state
Temperature
Which of the following best explains why water can exist as ice, liquid, or steam?
Water changes its color
Water changes its physical state depending on temperature
Water changes its mass
Water changes its magnetism
A mixture is made by combining sand, salt, and water. Which method would best separate all three components?
Use a magnet, then filter, then evaporate the water
Filter the mixture, then evaporate the water from the filtrate
Use a magnet, then heat the mixture
Let the mixture settle, then pour off the water
Which of the following best describes why saltwater is considered a solution and not just a mixture?
The salt can be seen floating in the water
The salt dissolves completely and cannot be seen, forming a uniform mixture
The salt and water can be separated by a magnet
The salt forms a layer at the bottom
A student mixes oil and vinegar and notices that after shaking, the liquids separate into two layers. What does this observation tell you about the mixture?
It is a solution because the liquids mix completely
It is a mixture of two liquids that do not form a solution
It is a solid-liquid mixture
It is a gas-liquid mixture
Which of the following mixtures is a solution where a solid is dissolved in a liquid?
Sand and water
Sugar and water
Oil and water
Iron filings and water
A student mixes 80 grams of soil with 120 grams of water in a beaker. After mixing, the total mass is measured. What should the mass be, and why?
80 grams, because soil dissolves
120 grams, because water is heavier
200 grams, because matter is conserved
160 grams, because some mass is lost
If you mix 50 grams of oil with 150 grams of water and the oil floats on top, what is the total mass of the mixture and what does this demonstrate?
100 grams; matter is lost
200 grams; matter is conserved
150 grams; oil evaporates
50 grams; water sinks
A student mixes 30 grams of salt into 100 grams of water. After the salt dissolves, the student weighs the solution. What should the mass be, and what does this show about matter?
70 grams; some matter is lost
130 grams; matter is conserved
100 grams; water keeps its mass
30 grams; salt disappears
If you mix 60 grams of sand, 40 grams of salt, and 100 grams of water, what is the total mass of the mixture after stirring?
100 grams
140 grams
200 grams
60 grams
A soccer ball is kicked and rolls across the grass, eventually stopping. Which energy transfers and forces are involved in this process?
Only gravity acts, and energy is not transferred
Kinetic energy is transferred, and friction slows the ball down
Only magnetism acts, and energy is lost
The ball gains energy as it stops
When a drum is hit, the sound can be heard across the room. Which statement best explains how the energy is transferred?
The drum transfers energy through light waves
The drum transfers energy through sound waves in the air
The drum transfers energy through heat
The drum transfers energy through electricity
A student drops a pebble into a pond and observes circular ripples moving outward. What type of energy transfer is occurring, and what is the medium?
Sound energy through air
Water wave energy through water
Heat energy through water
Light energy through air
A student claps their hands and hears an echo in a large empty room. What does this demonstrate about sound energy?
Sound energy can be absorbed by walls
Sound energy can travel, reflect, and be heard again
Sound energy cannot move through air
Sound energy is only produced by instruments
A student is given three unknown substances: one is hard and keeps its shape, one flows and takes the shape of its container, and one spreads out to fill the entire container. Which property should the student use to classify them?
Magnetism
Physical state (solid, liquid, gas)
Mass
Relative density
A mixture contains iron filings, sand, and salt. Which sequence of methods would best separate all three substances?
Use a magnet, then filter, then evaporate water
Filter, then use a magnet, then heat
Use a magnet, then heat, then filter
Evaporate water, then use a magnet
A student mixes 25 grams of oil, 75 grams of water, and 10 grams of salt. After mixing, what is the total mass, and what does this show about matter?
100 grams; matter is lost
110 grams; matter is conserved
75 grams; water keeps its mass
25 grams; oil floats
A metal spoon is placed in a cup of hot tea. After a few minutes, the spoon feels warm. What type of energy transfer has occurred?
Sound energy from the tea to the spoon
Heat energy from the tea to the spoon
Light energy from the tea to the spoon
Electrical energy from the tea to the spoon
