| North Middlesex - GRADE 08 SCIENCE AND TECH/ENG |
| ITEM INFORMATION | | PERCENT OF DISTRICT'S POSSIBLE POINTS |
| ITEM | TYPE | REPORTING CATEGORY | STANDARD | ITEM DESC | | POSSIBLE POINTS | NORTH MIDDLESEX | STATE | DISTRICT-STATE DIFFERENCE |
| 1 | SR | TE | 6.ETS.2.2 | Describe a property of a material that should be selected for the prototype of a design solution. | | 1 | 81% | 82% | -1 |
| 2 | SR | ES | 7.ESS.3.2 | Determine the geologic event that could occur during a rainy season in an area impacted by a forest fire. | | 1 | 89% | 81% | 8 |
| 3 | SR | PS | 7.PS.3.2 | Determine when the potential energy of an object will change the most. | | 1 | 48% | 53% | -5 |
| 4 | SR | ES | 8.ESS.1.1 | Interpret a diagram showing Earth's orbit around the Sun to identify the part of the diagram that represents a particular season. | | 1 | 34% | 35% | -1 |
| 5 | SR | PS | 6.PS.1.8 | Explain why a substance is classified as a mixture. | | 1 | 30% | 32% | -2 |
| 6 | SR | LS | 8.LS.3.1 | Describe how a genetic mutation can result in a change to the structure of the cell. | | 1 | 56% | 62% | -6 |
| 7 | SR | LS | 8.LS.3.3 | Determine that a certain substance is a protein because a gene codes for it. | | 1 | 69% | 66% | 3 |
| 8 | SR | LS | 6.LS.1.1 | Describe how single-celled organisms and cells from multi-celled organisms carry out similar functions. | | 1 | 27% | 25% | 2 |
| 9 | CR | LS | 8.LS.4.4 | Compare the genetic material of an organism that reproduces asexually with the genetic material of its offspring, and explain how natural selection can lead to an increase of organisms within a population that produce a specific protein. | | 3 | 29% | 33% | -4 |
| 10 | CR | ES | 7.ESS.3.4 | Analyze data to explain why a certain crop contributes the most to increasing global temperatures, explain why a certain crop allows for the greatest number of species in the ecosystem, and describe one way to reduce the environmental impact of a certain crop. | | 3 | 38% | 44% | -6 |
| 11 | SR | ES | 6.ESS.1.4 | Analyze evidence from diagrams showing rock layers and fossils from two locations to put several events in order from earliest to most recent. | | 1 | 24% | 28% | -4 |
| 12 | SR | ES | 8.ESS.2.5 | Use a diagram showing global wind patterns to describe the temperature and humidity of air in a region, and describe how air becomes warmer and rises as it moves across a region. | | 2 | 32% | 36% | -4 |
| 13 | SR | PS | 7.PS.3.1 | Interpret data from a graph to describe the relationship between speed and kinetic energy of an object. | | 1 | 30% | 35% | -5 |
| 14 | CR | TE | 7.ETS.3.1 | Interpret a diagram of a communication system to identify and describe a transmitter and a receiver in the system. | | 2 | 39% | 45% | -6 |
| 15 | SR | PS | 6.PS.1.6 | Identify evidence of an exothermic reaction occurring in an investigation, and identify the equipment used to measure a change in average molecular kinetic energy. | | 2 | 56% | 59% | -3 |
| 16 | SR | ES | 8.ESS.3.1 | Identify what led to the formation of fossil fuels in an area. | | 1 | 44% | 34% | 10 |
| 17 | SR | PS | 8.PS.1.4 | Explain what happens to water vapor when the temperature of the air changes. | | 1 | 53% | 47% | 6 |
| 18 | SR | LS | 7.LS.2.1 | Select a time period on a population graph when the population did not have enough resources available. | | 1 | 41% | 44% | -3 |
| 19 | SR | PS | 7.PS.2.3 | Compare the strengths of the electric forces between pairs of charges. | | 1 | 72% | 73% | -1 |
| 20 | SR | ES | 8.ESS.2.6 | Analyze information from a map and a table to explain the temperature difference between two geographic locations. | | 1 | 43% | 51% | -8 |
| 21 | SR | ES | 7.ESS.2.4 | Select the water cycle step shown on a diagram that is most directly affected by an increase in the amount of solar radiation. | | 1 | 59% | 57% | 2 |
| 22 | SR | PS | 8.PS.1.2 | Evaluate the steps of an investigation to determine the question students are trying to answer. | | 1 | 75% | 72% | 3 |
| 23 | SR | TE | 7.ETS.3.3 | Determine a subsystem that should be redesigned to achieve a given change in a transportation system. | | 1 | 64% | 63% | 1 |
| 24 | SR | PS | 7.PS.3.4 | Analyze a temperature graph of four metal samples to determine differences between the samples. | | 1 | 55% | 52% | 3 |
| 25 | SR | TE | 6.ETS.2.3 | Determine which piece of safety equipment would best protect a worker. | | 1 | 79% | 83% | -4 |
| 26 | SR | TE | 8.ETS.2.5 | Describe an advantage of using one manufacturing method compared to another method. | | 1 | 58% | 60% | -2 |
| 27 | SR | TE | 6.ETS.1.5 | Determine the scale used to create an object. | | 1 | 62% | 60% | 2 |
| 28 | CR | TE | 7.ETS.1.2 | Analyze a decision matrix to describe an advantage of using a certain material, explain why a material from the decision matrix should be used to make a certain object, and explain why a property of the material makes it a good choice to use. | | 3 | 41% | 42% | -1 |
| 29 | SR | ES | 8.ESS.2.1 | Identify the model that represents the type of plate movement that produces a volcanic mountain range. | | 1 | 62% | 66% | -4 |
| 30 | SR | PS | 8.PS.2.2 | Use a model to determine the net force on an object. | | 1 | 33% | 37% | -4 |
| 31 | SR | LS | 6.LS.1.3 | Determine the body system that directly controls when muscles contract. | | 1 | 55% | 54% | 1 |
| 32 | CR | PS | 7.PS.3.7 | Use information from a video to determine the positions at which an object has the greatest gravitational potential energy, the greatest elastic potential energy, and the greatest kinetic energy, and explain the reasoning. | | 3 | 26% | 28% | -2 |
| 33 | CR | LS | 7.LS.2.3 | Use information from a video to make a food web of an ecosystem, determine which two organisms from the ecosystem have a competitive relationship, and explain the reasoning. | | 2 | 41% | 52% | -11 |
| 34 | SR | TE | 7.ETS.3.4 | Use a diagram of a structure to describe a change that would prevent the structure from collapsing. | | 1 | 82% | 79% | 3 |
| 35 | SR | LS | 7.LS.1.4 | Explain how different parts of plants attract animals that pollinate the plant. | | 2 | 78% | 76% | 2 |
| 36 | SR | ES | 7.ESS.2.2 | Determine the result of water freezing and thawing on Earth's surface. | | 1 | 51% | 46% | 5 |
| 37 | SR | LS | 7.LS.2.5 | Determine an action that would help organisms being negatively affected by a human activity. | | 1 | 72% | 71% | 1 |
| 38 | SR | PS | 6.PS.4.2 | Determine whether waves are reflected or absorbed in several examples of wave motion. | | 1 | 79% | 75% | 4 |
| 39 | SR | ES | 8.ESS.1.2 | Explain why Earth orbits the Sun. | | 1 | 69% | 59% | 10 |
| 40 | SR | TE | 6.ETS.1.6 | Interpret a diagram of a design solution to determine whether different design features are benefits or limitations. | | 1 | 79% | 77% | 2 |
| 41 | SR | LS | 8.LS.1.5 | Determine that genetic differences in individuals of the same species result in different traits. | | 1 | 62% | 63% | -1 |
