8th Grade
Solve: 2x−6=10
A. 2
B. 4
C. 6
D. 8
C. 6
Solve: x+5=14x + 5 = 14x+5=14
A. 7
B. 8
C. 9
D. 19
C. 9
Which expression is equivalent to 3(x+4)?
A. 3x+4
B. x+12
C.3x+12
D. 7x
C.3x+12
What is the value of 10×0.510 \times 0.510×0.5?
A. 0.5
B. 5
C. 10
D. 15
B. 5
Which sentence contains a compound-complex structure?
A. I ran to school.
B. I ran to school, and I was late.
C. Because I was late, I ran to school, and I missed breakfast.
D. I was late because I overslept.
C. Because I was late, I ran to school, and I missed breakfast.
Which sentence best supports a claim in an argumentative essay?
A. I think homework is unfair.
B. Homework is boring.
C. Studies show homework improves student achievement.
D. Teachers like homework.
C. Studies show homework improves student achievement.
Which sentence uses context clues to help determine the meaning of the word elated?
A. She felt elated.
B. Elated means happy.
C. She was elated when she won the contest and smiled all day.
D. Elated is a feeling.
C. She was elated when she won the contest and smiled all day.
Which word is a synonym for important?
A. Tiny
B. Serious
C. Necessary
D. Extra
C. Necessary
Which law explains why an object stays at rest unless acted upon by a force?
A. Law of Gravity
B. Newton’s First Law
C. Newton’s Second Law
D. Law of Conservation of Energy
B. Newton’s First Law
Which type of cell is responsible for carrying oxygen in the blood?
A. Red blood cell
B. Platelet
C. White blood cell
D. Nerve cell
A. Red blood cell
Which process causes liquid water to change into water vapor?
A. Condensation
B. Evaporation
C. Freezing
D. Precipitation
Answer: B
B. Evaporation
What gas do plants take in during photosynthesis?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
C. Carbon dioxide
What is the slope of the line represented by the equation y=3x+2y = 3x + 2y=3x+2?
A. 2
B. 3
C. −2
D. −3
B. 3
What is the probability of rolling a 4 on a standard six-sided number cube?
A. 1/2
B. 1/6
C.1/4
D. 1/3
B. 1/6
What is the value of 232^323?
A. 6
B. 16
C. 9
D. 8
D. 8
Which fraction is equal to 1/2?
A. 2/3
B. 3/6
C. 4/5
D. 5/8
B. 3/6
Which type of energy is stored in food?
A. Mechanical
B. Thermal
C. Chemical
D. Electrical
C. Chemical
Which body system is most directly responsible for breaking down food?
A. Digestive
B. Respiratory
C. Circulatory
D. Nervous
A. Digestive
Which layer of the Earth is the hottest?
A. Crust
B. Mantle
C. Outer core
D. Inner core
D. Inner core
Which tool is best for measuring temperature?
A. Ruler
B. Scale
C. Thermometer
D. Stopwatch
C. Thermometer