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Sample Question of the Day
Question:
Calculate the quotient of 726 ÷ 3 using the standard algorithm. Show your work step by step.
💡 Explanation:
To divide 726 by 3 using the standard algorithm, follow these steps: 1.
Divide the first digit of the dividend (7) by 3.
The quotient is 2, with a remainder of 1.
2.
Bring down the next digit of the dividend (2), making the number 12.
3.
Divide 12 by 3.
The quotient is 4, with no remainder.
4.
Bring down the next digit of the dividend (6), making the number 6.
5.
Divide 6 by 3.
The quotient is 2, with no remainder.
Thus, 726 ÷ 3 = 242.
Standard: 6.NS.B.2 | DOK: 2
Recent Questions
Question:
Which of the following best describes the role of food in an organism's body according to MS-LS1-7?
Answer Choices:
- A) Food is rearranged through chemical reactions to form new molecules that support growth.
- B) Food is stored in the body for future use and does not change form.
- C) Food is directly converted into waste without any chemical reactions.
- D) Food is used only for energy release without forming new molecules.
💡 Explanation:
- According to MS-LS1-7, food undergoes chemical reactions in an organism's body, which rearrange the molecules to form new molecules.
- These new molecules support growth and release energy as they move through the organism.
Standard: MS-LS1-7 | DOK: 1
Question:
A submarine is exploring the depths of the ocean. It starts at sea level (0 meters) and descends 250 meters below sea level. Later, it ascends 150 meters. What is the current position of the submarine relative to sea level?
Answer Choices:
- A) 100 meters below sea level
- B) 100 meters above sea level
- C) 400 meters below sea level
- D) 150 meters above sea level
💡 Explanation:
The submarine starts at 0 meters and descends 250 meters, putting it at -250 meters (below sea level).
Then, it ascends 150 meters, moving to -100 meters (still below sea level).
Thus, the submarine is currently 100 meters below sea level.
Standard: 6.NS.C.5 | DOK: 3
Question:
Which of the following observations provide evidence for the past motion of tectonic plates? Select all that apply.
Answer Choices:
- A) The presence of similar fossils on different continents separated by oceans.
- B) The occurrence of earthquakes in specific, narrow zones across the globe.
- C) The alignment of mountain ranges of similar age and composition across continents.
- D) The consistent temperature of ocean water across all depths and locations.
- E) The distribution of volcanic activity along the mid-ocean ridges.
💡 Explanation:
- The presence of similar fossils on continents now separated by oceans suggests those continents were once joined.
- The alignment of mountain ranges of similar age indicates they were formed from the same geological processes when the continents were connected.
- The distribution of volcanic activity along mid-ocean ridges is related to seafloor spreading, which is a result of plate tectonics.
Standard: MS-ESS2-3 | DOK: 2
Question:
A student combines vinegar and baking soda in a sealed plastic bag and observes the following changes: The bag inflates, the mixture inside bubbles and fizzes, and the temperature of the bag decreases slightly. Based on these observations, what can be concluded about the interaction between vinegar and baking soda?
Answer Choices:
- A) A) A physical change occurred because the substances maintained their original properties.
- B) B) A chemical reaction occurred because new substances with different properties were formed.
- C) C) No reaction occurred since the substances were simply mixed together.
- D) D) A phase change occurred because the temperature of the bag changed.
💡 Explanation:
- The inflation of the bag and the fizzing indicate the formation of a gas, while the temperature change suggests an exothermic or endothermic reaction.
- These observations are evidence of a chemical reaction where new substances (such as carbon dioxide gas) are formed.
Standard: MS-PS1-2 | DOK: 3
Question:
What is a representative sample, and why is it important in statistics?
💡 Explanation:
A representative sample ensures that the sample accurately reflects the diversity and characteristics of the entire population.
This is crucial for making valid and reliable conclusions in statistical analysis, helping to save time and resources while providing insights that are generalizable to the whole population.
Standard: 7.SP.A.1 | DOK: 1
Question:
You are given three line segments of lengths 7 cm, 10 cm, and 5 cm. Which of the following statements is true about constructing a triangle using these line segments?
Answer Choices:
- A) A triangle can be constructed using these line segments because the sum of any two sides is greater than the third side.
- B) A triangle cannot be constructed using these line segments because the sum of the two shorter sides is not greater than the longest side.
- C) A triangle can be constructed using these line segments because the sum of all three sides is greater than 20 cm.
- D) A triangle cannot be constructed using these line segments because all sides must be equal.
💡 Explanation:
According to the triangle inequality theorem, the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
In this case, 7 cm + 5 cm = 12 cm, which is not greater than 10 cm.
Therefore, a triangle cannot be constructed with these segments.
Standard: 7.G.A.2 | DOK: 4