Science Benchmark 2 Review

QuizÂ by Becky Turner

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30 questions
• Q1
All of the liquids in the jar are clear with a drop of food coloring in them to allow the layers to show. Which of the following would be a way to identify which layer is actually water?
Shake to mix the liquids, let them settle, then label the bottom layer as water.
Put additional food coloring in the jar and label the darkest layer as water.
Put additional water in the jar and see which layer becomes deeper.
Shake to mix the liquids, let them settle, and pick the top layer.
120s
• Q2
Which of the following statements is true?
Water is less dense than oil.
The plastic block is less dense than the grape and water.
The grape is more dense than the syrup and less dense than the water.
The cork is more dense than all of the liquids.
120s
• Q3
Students had 4 different clear liquids and added a drop of food coloring to each (each liquid had a different color added). After adding the food coloring, students poured all 4 liquids together and mixed them. Students allowed the liquids to settle and the above layers formed. How could the students determine which layer of liquid is water?
Pour more water into the mixture, put the mixture in the freezer and see which layer freezes first.
Pour more water into the mixture and see which layer becomes deeper.
Pour more water into the mixture and see which layer settles at the top.
Pour more water in the mixture and see which layer settles to the bottom.
120s
• Q4
A student classifies the shown items based on physical properties. Which property cannot be used in order to classify the objects into more than one group?
electrical conductivity
magnetism
solubility
mass
120s
• Q5
A student mixes water with 4 different substances- salt, pepper, dish soap, and marbles. Which mixture would be easiest to separate using the strainer?
water and dish soap
water and salt
water and pepper
water and marble
120s
• Q6
A beaker with 200 mL of a solution made of water and sugar was sitting at 38 degrees celcius. A student added a small cupful of ice to the solution. Which properties of the solution would change as the ice melted?
The temperature, volume, and mass of the sugar.
The color and physical state.
The physical state and temperature of the solution.
The temperature, mass, and volume of the solution.
120s
• Q7
A student uses a set of headphones to listen to music. Which of these objects uses the same source on energy as the headphones?
A keyboard using electrical energy
A piano using mechanical energy
A flute using wind energy
A teapot using thermal energy
120s
• Q8
Which two samplescould be glass and saltwater?
Samples 3 and 4
Samples 1 and 2
Samples 2 and 3
Samples 1 and 3
120s
• Q9
What is the difference in grams between the total mass of the liquid substances and the total mass of the solid substances used in the investigation?
165
148
168
186
120s
• Q10
A student is given a beaker containing gravel and water. Which of these ways could the student NOT use to separate the gravel from the water?
3
1
2
4
120s
• Q11
To recharge the battery for later use without lighting the bulb, which of the following switches should be closed?
Switches R and T only
Switches R and S only
Switch S only
Switches R, S and T
120s
• Q12
The fish appears to be closer to the surface than it really is. What causes this difference?
Light is focused
Light is reflected
Light is blocked
Light is refracted
120s
• Q13
Some students paint the inside of several boxes. They paint each box a different color. They observe that the inside of the box painted white looks brighter than the others. What is the most likely reason this box looks brighter?
More light is reflected off white paint
More light is absorbed by white paint
More light passes through white paint
More light is refracted by white paint
120s
• Q14
Which of the following best describes how the objects lens of this telescope helps a scientist observe the moon?
The objective lens reflects light
The objective lens produces light
The objective lens blocks light
The obective lens refracts light
120s
• Q15
Erosion is one of the processes involved in the formation of sedimentary rock. Which of these best describes the process of erosion?
Pressure compacts layers of sediment and turns them into rock
Pieces of rock or soil are carried from one place to another
Rocks are broken into smaller pieces that remain in the same location
Sidement grains fall to the bottom of a lake to form sedimentary layers
120s

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