Grade 8_Topic 1-4 Review
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Mitzi Dirocco
Used 32+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table shows the volume and mass of each liquid. When the student mixes all four liquids into one beaker, each liquid separates into a different layer. The formula for density is density = mass/volume. Which of the following lists the layers of the liquids in the beaker from the top to the bottom?
corn syrup, dish soap, water, vegetable oil
corn syrup, water, dish soap, vegetable oil
vegetable oil, water, dish soap, corn syrup
vegetable oil, dish soap, water, corn syrup
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student is given a sample of an unknown solid and asked to identify it. The student begins by making a list of questions to investigate about the sample. Which question would be the least useful in helping the student identify the sample?
Is the sample soluble in water?
What is the weight of the sample?
Is the sample attracted to a magnet?
What is the melting point of the sample
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Several groups of students were given a 2-gram (g) cube of iron and a 4g cube of iron. They examined three physical properties of each cube: density, magnetism, and electrical conductivity. Which statement describes the most likely findings of the students?
The cubes had identical properties because the amount of matter would not change these physical properties.
The 2g cube had smaller values for the physical properties because the matter was squeezed together in a smaller space.
The density and ability to conduct electricity remained the same but was twice as magnetic because the cube was twice as large.
The 4g cube had a greater density, was more magnetic, and was a stronger conductor of electricity because it occupied a larger space
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student measures the mass and volume of three different metal samples. The student's data are recorded in the table. Which list shows the metals in order from most dense to least dense?
nickel, zinc, iron
nickel, iron, zinc
zinc, iron, nickel
zinc, nickel, iron
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student measures the mass of a beaker containing water to be 250 grams (g). She adds table salt to the beaker and stirs until all of the salt is dissolved and the solution is clear. How does the addition of salt affect the mass of the beaker and its contents?
The mass of the beaker and its contents is still 250 g.
The mass of the beaker and its contents is now less than 250 g.
The mass of the beaker and its contents is now greater than 250 g
The mass of the beaker and its contents depends on whether new atoms are formed.
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student weighs and then heats a petri dish of potassium carbonate (K₂CO₃). When heated, solid potassium carbonate (K₂CO₃) breaks down into solid potassium oxide (K₂O) and carbon dioxide (CO₂) gas. The student notes that after heating, the mass of the solid decreases. How might a student explain the difference observed?
Some of the mass left as a gas.
The mass that was lost was converted to energy.
Mass is not conserved in reactions that produce carbon dioxide.
Some of the potassium carbonate evaporated when heated.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student performs an investigation and titles her report: The Effect the Amount of Rain has on the Clarity of Well Water. What is the tested variable (independent variable) in this investigation?
the well
the date of rain
the amount of rainfall
the clarity of the well water
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