5.6A Physical Properties of Matter
Which property can be used to separate iron filings from sand?
A. Density
B. Magnetism
C. Solubility
D. Mass
B – Magnetism
Which of these is a mixture?
A. Lemonade
B. Saltwater
C. Pizza
D. All of the above
D – All of the above
A student stirs 5 g of salt into 100 g of water. What is the total mass of the mixture?
A. 95 g
B. 100 g
C. 105 g
D. 110 g
C – 105 g
What type of force causes a dropped apple to fall to the ground?
A. Friction
B. Gravity
C. Magnetism
D. Electric
B – Gravity
A student wants to test how ramp height affects car speed. What should change?
A. Type of car
B. Ramp height
C. Surface type
D. Force of gravity
B – Ramp height
Matter has ___ and takes up ___.
Matter has mass and takes up space.
A ___ can be separated, but a ___ cannot.
Mixture; solution
Matter cannot be ___ or ___, only changed in form.
Created; destroyed
A push or a pull is called a ___.
Force
The variable you purposely change in an experiment is called the ___ variable.
Independent
Which tool would best measure the mass of a rock?
A. Thermometer
B. Beaker
C. Triple-beam balance
D. Magnet
C – Triple-beam balance
Which process separates sand from water?
A. Filtering
B. Freezing
C. Melting
D. Boiling
A – Filtering
When ice melts into water, which statement is true?
A. Mass increases
B. Mass decreases
C. Mass stays the same
D. Mass disappears
C – Mass stays the same
A ball rolls across the floor and slowly stops. Which force caused it to stop moving?
A. Gravity
B. Friction
C. Magnetism
D. Push
B – Friction
A student pulls objects with a spring scale. What does the scale measure?
A. Temperature
B. Force
C. Friction
D. Volume
B – Force
If an object floats in water, its density is ___ than water’s.
Less than
When sugar dissolves in water, it spreads out ___ throughout the liquid.
Evenly
Evaporating saltwater leaves behind ___.
Salt crystals
When forces on an object are balanced, the object’s motion ___.
Does not change
To keep an experiment fair, only ___ variable should change at a time.
One
Explain how you could test if an unknown object conducts electricity.
Connect it in a circuit with a bulb; if the bulb lights, it conducts electricity.
Describe one way you could tell whether a substance dissolved completely in water.
The water looks clear and no solid is visible on the bottom.
During a lab, a student dissolves 10 grams of salt in 100 grams of water inside a closed container. After the salt dissolves, the student measures the total mass again and finds it still equals 110 grams.
What does this show about matter?
It shows that matter is conserved — the total mass stays the same because the salt and water still exist, just in a different form.
Describe one example of unbalanced forces in everyday life.
Various answers that include movement
Design a quick test to find out if heavier objects need more force to move than lighter ones.
Use a spring scale to pull objects of different masses and compare the force readings.