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WorksheetsMatter Unit Test
Total questions: 16
Worksheet time: 16mins
A student constructed an investigation using several substances and recorded the results in the table shown.
Which data table correctly identifies the substances listed above?
Why are electrical wires usually wrapped in plastic coating? More than 1 answer choice
because plastic is an insulator
because plastic is a good conductor of electricity
because plastic is flexible
to protect the wires from rusting when exposed to water
A chef uses the following ingredients to prepare a meal.
- Pepper
- Olive Oil
- Onion
- Salt
- Honey
Which table below correctly classifies the physical properties of these ingredients when placed in hot water?
A teacher showed her class this unlabeled density column.
What can the class do to identify which layer is water?
Add olive oil to the beaker and identify the layer on top of the oil as water
Add water to the beaker and then identify the layer that increased in volume as water
Heat the beaker and identify the layer that boils as water
Place a ping pong ball in the beaker and identify the layer it floats on as water
Students were asked to compare the masses of four spheres that were all the same size but made of different material. The students used a balance to compare the masses of two spheres at a time. The students repeated this process three more times with different pairs of spheres and recorded observations.
Which list shows the spheres in order from greatest to least?
Spheres A, B, C, D
Spheres B, C, D, A
Spheres C, A, B, D
Spheres D, C, B, A
A student wanted to test some objects to see if they would sink or float. What conclusion can be made from her investigation?
The marble is less dense than the water and the mineral oil
The marble is more dense that the water and the mineral oil
The block is less dense than the water and more dense than the mineral oil
The block is more dense than the water and less dense than the mineral oil
Students investigated 4 different items and recorded their observations in a data table.
What physical property can be used to classify these objects into two different groups?
Color
State of matter
Magnetism
Solubility
A student observed and recorded data about the physical properties of two objects.
Which group shows the objects the student was observing?
Object A is a metal fork
Object B is a paper clip
Object A is a plastic spoon
Object B is an iron nail
Object A is a sponge
Object B is and eraser
Object A is and eraser
Object B is a plastic spoon
A student collected data on several objects and recorded the data in a chart.
Which object can be added to the left side of the chart?
Aluminum foil
Oven mitt
Blanket
Cotton balls
A student places 5 pinto beans in fresh water and 5 pinto beans in salt water. The beans in the fresh water sink, but the beans in the salt water float. Which statement below explains his findings? (more than 1 answer choice)
The beans are more dense than fresh water
Salt water and fresh water have the same density
The beans are more dense than salt water
The beans are less dense that salt water
Which of the following would be the best method to separate small pieces of wood and small pieces of metal placed in a beaker?
Heat the beaker on a hot plate
Pour the contents into a strainer/filter
Let the contents set for a day to settle out
Add water to the beaker to see which one sinks and which one floats
A mixture contains salt, sand, water, iron filings and marbles. A student conducted the following investigation to separate the parts of the mixture:
Which part of the mixture is removed during step 3?
sand
marbles
salt
iron filings
A teacher gave her students a mixture to separate. It was made of equal parts salt and sand. The salt grains and sand were the same size. What would be the easiest way for the students to separate this mixture?
Add water to the mixture, stir, then filter the sand out of the water
Use a strainer with a fine wire screen to remove the sand
Use tweezers to remove the sand
Run a magnet through the mixture to attract the sand
The table lists the ingredients of five different mixtures.
In which mixture so all the ingredients maintain their physical state?
Mixtures 1, 4, and 5
Mixtures 1 and 3
Mixtures 2, 3, and 4
Mixtures 3 and 5
Which of the following will happen when a mixture of salt and water are left for a few days? (more than 1 answer choice)
the water will evaporate
the salt will evaporate with the water
nothing will happen. The salt and water will remain in the cup
once the water evaporates the salt will be left in the container
Which change occurs when salt is mixed with water?
The water becomes a gas
The volume of the water decreases
The salt dissolves and spreads out evenly in water
The mass of the salt increases
