Vocabulary
Physical Properties
Mixtures and Solutions
Separating Mixtures and Solutions
WILD CARD
100
A combination of 2 or more substances that keep their original properties and can be separated easily?
Mixture
100
A student grouped the following materials together
- a penny
- brick
- popsicle stick
- rubber eraser
Which property did the student MOST LIKELY use to group the materials?
a. ability to float in water
b. physical state
c. flexibility
d. electrical conductivity
b. physical state
100
Which substances, when mixed together, maintain their original physical properties?
a. gravel and water
b. wood chips, water, and sand
c. sand and water
d. all of the above
d. all of the above
100
Which of the following mixtures can be separated with a magnet?
a. sand and salt
b. sand and iron filings
c. sugar and water
d. saltwater
b. sand and iron filings
100
For the energy to flow in this circuit, what must be in the "?" spot?
a. an insulator
b. a conductor
c. electrical energy
d. solubility
b. a conductor
200
a protective material that prevents the flow of heat, sound, or electricity
Insulator
200
The objects have all of the following properties in common EXCEPT -
a. they all conduct electricity
b. they all sink in water
c. they are all magnetic
d. they are all solids
c. they are all magnetic
200
What is a mixture?
a. a combination of two or more substances that are evenly distributed throughout
b. anything that takes up space and has mass
c. two or more ingredients that form a new substance when combined
d. a combination of two or more substances that keep their own properties
d. a combination of two or more substances that keep their own properties
200
Which mixture can be separated using a filter?
a. sand and iron filings
b. saltwater
c. sand and water
d. none of the above
c. sand and water
200
a student fills an ice tray with water and places it in the freezer. The next day, the student removes the tray and observes ice cubes in the tray. What causes the water to change from liquid to solid?
a. heat is added to the water
b. air is added to the water
c. heat is removed from the water
d. light is removed from the water
c. heat is removed from the water
300
a combination of 2 or more substances where one is evenly dissolved into another.
solution
300
Four students sort materials into two groups: Conductors and Insulators.
Which student correctly sorted the materials?
Student 2
300
A student creates a graphic organizer to identify simple mixtures.
What two mixtures could complete the graph?
a. trail mix
b. lemonade
c. fruit salad
d. koolaid
trail mix and fruit salad
300
Which mixture can be separated using a hot plate?
a trail mix
b salt and water
c sand and water
d iron filings and sand
b salt and water
300
Water changes its state of matter when heat is added or taken away. When water boils, the particles-
a. are closer together
b. are moving more rapidly
c. stay the same
d. are moving more slowly
b. are moving more rapidly
400
Property of a given substance to dissolve in another substance
Solubility
400
Why are the electrical plugs made with the materials shown in the image?
a. Plastic is a good conductor, while metal is a good insulator.
b. Plastic and metal are both inexpensive materials.
c. Plastic and metal are both good conductors.
d. Plastic is a good insulator, while metal is a good conductor.
d. Plastic is a good insulator, while metal is a good conductor.
400
Which mixtures contain one or more ingredients that do NOT maintain their physical state?
Select TWO answers.
Mixture 2 and 5
400
Students create a mixture using the ingredients shown below.
Could a coffee filter be used to separate the mixture?
a. Yes, because the mixture is poured into the filter, the beans will remain in the filter and the rice will pass through
b. Yes, because both the beans and the rice will pass through the filter
c. No, because both the beans and the rice will remain in the filter.
d. No, because both the beans and the rice will pass through the filter
c. No, because both the beans and the rice will remain in the filter.
400
Which material is the best to complete the circuit above?
a. copper wire
b. cork
c. plastic paper clip
d. rubber band
a. copper wire
500
Has the ability to allow electricity, heat, or sound to flow through it easily.
Conductor
500
A mixture of oil and water is placed in a glass beaker and stirred. Which picture depicts what most likely happened after the beaker sits for three minutes?
C
500
Which of the following mixtures is a solution?
a honey and hot tea
b sand and water
c oil and water
d sugar and salt
a. honey and hot tea
500
A student stirs a mixture of sand, iron filings, and water and observes that eventually the sand and iron filings sink to the bottom of the container. How can the student separate the mixture?
a. Slowly pour the mixture into another container, making sure the sand does not flow out with the water. Pick the iron out with tweezers
b. Pour the mixture into a pot and heat one minute. Spoon the sand from the water. Use a magnet to remove the iron.
c. Pour the mixture through a coffee filter, leaving only the sand and iron in the filter. Separate the sand and iron with a magnet.
d. Use a spoon and scoop out as much sand as possible. Drag a magnet through the water to remove the iron.
c. Pour the mixture through a coffee filter, leaving only the sand and iron in the filter. Separate the sand and iron with a magnet.
500
A student places five different substances in separate beakers. The student places each beaker on a hot plate and heats the substances for five minutes. Which substances change states when tested in this manner?
a. chocolate chip
b. penny
c. craft stick
d. pebble
e. ice cube
chocolate chip and ice cube