Coverage by content domain
Lessons and questions are organized around the exam’s content areas so your preparation reflects the structure of the assessment.
Why Test Alignment Matters for Your NES Middle Grades General Science Study Guide
Certification test standards are broad, but the exam questions are very specific. Our team of curriculum experts uses the 240 Study Guide Creation Process to ensure the most aligned, specific content for your NES Middle Grades General Science (205) test — so you are not wasting time on broad subject review that may not show up on exam day.
Why 240 is the best choice for the NES 205 study guide
- Built around the official exam framework
- Organized by the competencies actually used on the exam
- Shows exactly what is covered and where depth is partial
- Includes aligned questions, flashcards, study materials, and videos
- Helps candidates study what is actually tested instead of broad generic content
Transparent coverage is a strength. We show where the guide is strong, where depth is partial, and where a gap has been identified so you can make an informed study decision.
How to Read This Alignment Review
3Domains
74Competencies reviewed
81%Test-aligned
60Covered
0Partially covered
14Gaps
- CoveredCompetency is comprehensively supported by the guide.
- Partially coveredCore content is covered, but some depth gaps remain.
- Coverage gap identifiedA content gap has been identified.
This study guide is based on the current official exam framework. We review and update alignment whenever the official framework changes so candidates are always studying current, accurate material.
PHYSICAL SCIENCE (Domain I)Partially covered
SMR I.0001 · Understand the properties and characteristics of matter363 questions · 31 materials · 149 cards · 6 videosCovered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Identify historical and contemporary theories of atomic structure. | S.Parts of an Atom; S.Atomic Models | Covered | 17 | 2 | 12 | 1 | Covered by 2 topics (17 questions, 2 materials, 12 cards, 1 videos). |
| b. Demonstrate knowledge of the physical and chemical properties of matter (e.g., reactivity, polarization, electronegativity). | S.Ions; S.Radioactivity; S.Physical Properties; S.Chemical Properties; S.Applications of Physical and Chemical Properties; S.Periodic Table and Chemical Properties | Covered | 68 | 6 | 51 | 0 | Covered by 6 topics (68 questions, 6 materials, 51 cards, 0 videos). |
| c. Recognize the characteristics of different types of chemical bonds and their effects on the properties of matter. | S.Types of Bonds; S.Single, Double, Triple Bonds | Covered | 25 | 2 | 11 | 0 | Covered by 2 topics (25 questions, 2 materials, 11 cards, 0 videos). |
| d. Demonstrate knowledge of the organization of the periodic table and its relationship to the structure and behavior of elements. | S.Periodic Table; S.Periodic Table Arrangement | Covered | 16 | 2 | 16 | 1 | Covered by 2 topics (16 questions, 2 materials, 16 cards, 1 videos). |
| e. Apply knowledge of the characteristics of elements, compounds, and mixtures, including solutions, suspensions, and colloids. | S.Types of Elements; S.Mixtures and Solutions; S.Types of Solutions | Covered | 25 | 3 | 18 | 2 | Covered by 3 topics (25 questions, 3 materials, 18 cards, 2 videos). |
| f. Demonstrate knowledge of the nature of radioactive materials (e.g., realworld examples, various forms of atoms, isotopes, radioactive vs. nonradioactive atoms). | S.Stable/Unstable Isotopes; S.Applications of Radioactivity | Covered | 9 | 2 | 5 | 0 | Covered by 2 topics (9 questions, 2 materials, 5 cards, 0 videos). |
| g. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the properties and characteristics of matter. | S.Scientific Method; S.Safety Rules; S.Repeatability; S.Nature of Science; S.Proper Handling - Chemicals; S.Proper Data Analysis; M.Observations, Conclusions, and Relationships | Covered | 99 | 7 | 31 | 2 | Covered by 7 topics (99 questions, 7 materials, 31 cards, 2 videos). |
| h. Apply knowledge of engineering design practices related to understanding the properties and characteristics of matter, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | S.Engineering Design Process; S.Properties of Systems; S.Change In Systems; S.Form and Function; S.Change, Constancy, and Measurements; S.Evidence, Models, and Explanation; S.Models | Covered | 104 | 7 | 22 | 0 | Covered by 7 topics (104 questions, 7 materials, 22 cards, 0 videos). |
SMR I.0002 · Understand physical and chemical changes in matter.109 questions · 10 materials · 31 cards · 1 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Demonstrate knowledge of the conservation of matter in chemical reactions and in balancing chemical equations. | S.Conservation of Matter and Energy; S.Chemical Equations | Covered | 19 | 2 | 7 | 0 | Covered by 2 topics (19 questions, 2 materials, 7 cards, 0 videos). |
| b. Analyze physical and chemical changes. | S.Periodic Table and Physical Properties; S.Periodic Table and Chemical Properties | Covered | 32 | 2 | 8 | 0 | Covered by 2 topics (32 questions, 2 materials, 8 cards, 0 videos). |
| c. Apply knowledge of chemical formulas, the mole concept, and chemical equations to solve problems. | S.Stoichiometry | Covered | 10 | 1 | 2 | 0 | Covered by 1 topic (10 questions, 1 materials, 2 cards, 0 videos). |
| d. Recognize the characteristics of different types of chemical reactions and factors that affect rates of reaction and chemical equilibrium. | S.Balancing Chemical Reactions | Covered | 14 | 1 | 1 | 0 | Covered by 1 topic (14 questions, 1 materials, 1 cards, 0 videos). |
| e. Apply knowledge of the ideal gas law and kinetic molecular theory. | S.Gas Laws; S.Molecular Geometry | Covered | 23 | 2 | 8 | 0 | Covered by 2 topics (23 questions, 2 materials, 8 cards, 0 videos). |
| f. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the physical and chemical changes in matter. | S.Background Research; S.Prediction, Explanation, Theory, Fact | Covered | 11 | 2 | 6 | 1 | Covered by 2 topics (11 questions, 2 materials, 6 cards, 1 videos). |
| g. Apply knowledge of engineering design practices related to understanding the physical and chemical changes in matter, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
SMR I.0003 · Understand the characteristics of different forms of energy and of mechanical and electromagnetic waves.203 questions · 16 materials · 85 cards · 2 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Demonstrate knowledge of the law of conservation of energy, the laws of thermodynamics, and the concepts of entropy and enthalpy. | S.Laws of Thermodynamics | Covered | 8 | 1 | 9 | 0 | Covered by 1 topic (8 questions, 1 materials, 9 cards, 0 videos). |
| b. Demonstrate knowledge of the characteristics of different forms of energy and their transformations. | S.Types of Energy; S.Heat vs Temperature | Covered | 40 | 2 | 11 | 1 | Covered by 2 topics (40 questions, 2 materials, 11 cards, 1 videos). |
| c. Demonstrate knowledge of the transfer of energy through conduction, convection, and radiation, including using models. | S.Conduction, Convection, and Radiation | Covered | 17 | 1 | 4 | 1 | Covered by 1 topic (17 questions, 1 materials, 4 cards, 1 videos). |
| d. Analyze characteristics of electrical charge and static electricity, problems involving Ohm's law, and series and parallel circuits. | S.Circuits; S.Series and Parallel; S.Ohms law | Covered | 32 | 3 | 12 | 0 | Covered by 3 topics (32 questions, 3 materials, 12 cards, 0 videos). |
| e. Demonstrate knowledge of the relationship between magnetism and electricity as well as the properties of permanent magnets and electromagnets. | S.Electricity and Magnetism; S.Electrical Charges; S.Electromagnets | Covered | 32 | 3 | 16 | 0 | Covered by 3 topics (32 questions, 3 materials, 16 cards, 0 videos). |
| f. Recognize the characteristics of the electromagnetic spectrum. | S.Electromagnetic Spectrum | Covered | 9 | 1 | 2 | 0 | Covered by 1 topic (9 questions, 1 materials, 2 cards, 0 videos). |
| g. Analyze the effects of mirrors, lenses, and prisms on the behavior of light. | S.Mirrors; S.Lenses; S.Prisms | Covered | 15 | 3 | 14 | 0 | Covered by 3 topics (15 questions, 3 materials, 14 cards, 0 videos). |
| h. Apply knowledge of the characteristics of waves (e.g., sound, mechanical, electromagnetic) and their behavior as they pass through different media, including the relationship between wave characteristics and their properties. | S.Properties of Waves; S.Sound | Covered | 50 | 2 | 20 | 0 | Covered by 2 topics (50 questions, 2 materials, 20 cards, 0 videos). |
| i. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the characteristics of different forms of energy and of mechanical and electromagnetic waves. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| j. Apply knowledge of engineering design practices related to understanding the characteristics of different forms of energy and of mechanical and electromagnetic waves, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
SMR I.0004 · Understand relationships between force, mass, and motion.110 questions · 14 materials · 41 cards · 2 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Apply knowledge of Newton's three laws of motion in a variety of situations. | S.Force and Newton's Laws; S.Newton's First Law; S.Newton's Second Law; S.Newton's Third Law | Covered | 43 | 4 | 13 | 1 | Covered by 4 topics (43 questions, 4 materials, 13 cards, 1 videos). |
| b. Apply knowledge of scalar and vector quantities and solve related problems. | M.Vectors and Scalars; M.Vector Multiplication - Cross Product; M.Vector Multiplication - Dot Product; M.Vector Multiplication by a Scalar; M.Vector Addition and Subtraction | Covered | 26 | 5 | 12 | 0 | Covered by 5 topics (26 questions, 5 materials, 12 cards, 0 videos). |
| c. Apply knowledge of separate forces that act on a system (e.g., gravity, friction, pressure, buoyancy) in a variety of situations, including determining the stability or net force on a system. | S.Physical Properties of Fluids; S.Gravity | Covered | 16 | 2 | 5 | 0 | Covered by 2 topics (16 questions, 2 materials, 5 cards, 0 videos). |
| d. Analyze the motion of an object, including through graphs and diagrams. | S.Motion Terms | Covered | 14 | 1 | 8 | 1 | Covered by 1 topic (14 questions, 1 materials, 8 cards, 1 videos). |
| e. Demonstrate knowledge of the principles of work and power, including as applied to simple machines. | S.Work, Energy, Power; S.Work, Energy, Power - Calculations | Covered | 11 | 2 | 4 | 0 | Covered by 2 topics (11 questions, 2 materials, 4 cards, 0 videos). |
| f. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the relationships between force, mass, and motion. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| g. Apply knowledge of engineering design practices related to understanding the relationships between force, mass, and motion, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
LIFE SCIENCE (Domain II)Partially covered
SMR II.0005 · Understand the characteristics and processes of cells and living organisms.240 questions · 20 materials · 126 cards · 7 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Recognize how the structure of specialized cells relates to their various functions. | S.Cells, Tissues, Organs, Organ Systems; S.Types of Cells | Covered | 19 | 2 | 15 | 1 | Covered by 2 topics (19 questions, 2 materials, 15 cards, 1 videos). |
| b. Demonstrate knowledge of the structure and function of eukaryotic and prokaryotic cells, including cell organelles. | S.Eukaryotic vs Prokaryotic; S.Parts of the Cell; S.Types of Cells | Covered | 47 | 3 | 26 | 2 | Covered by 3 topics (47 questions, 3 materials, 26 cards, 2 videos). |
| c. Demonstrate knowledge of mitosis and meiosis. | S.Mitosis; S.Meiosis | Covered | 24 | 2 | 30 | 0 | Covered by 2 topics (24 questions, 2 materials, 30 cards, 0 videos). |
| d. Analyze the reproduction, development, and life cycles of representative organisms. | S.Asexual Reproduction; S.Sexual Reproduction | Covered | 23 | 2 | 10 | 0 | Covered by 2 topics (23 questions, 2 materials, 10 cards, 0 videos). |
| e. Demonstrate knowledge of the structures and functions of plant and animal systems, including the different levels of biological organization. | S.Plant Growth; S.Plant Reproduction | Covered | 17 | 2 | 18 | 0 | Covered by 2 topics (17 questions, 2 materials, 18 cards, 0 videos). |
| f. Analyze how organisms obtain, use, and store matter and energy. | S.Habitats and Niches; S.Roles In Food Chain; S.Food Webs | Covered | 48 | 3 | 18 | 2 | Covered by 3 topics (48 questions, 3 materials, 18 cards, 2 videos). |
| g. Analyze the processes of respiration and photosynthesis at the cellular level. | S.Respiration; S.Photosynthesis | Covered | 19 | 2 | 15 | 1 | Covered by 2 topics (19 questions, 2 materials, 15 cards, 1 videos). |
| h. Analyze how organisms maintain homeostasis, fight diseases, and repair injuries. | S.Stimuli; S.Plant Stimuli Responses; S.Homeostasis; S.Positive and Negative Feedback; S.Structures and Processes of Homeostasis | Covered | 51 | 5 | 11 | 1 | Covered by 5 topics (51 questions, 5 materials, 11 cards, 1 videos). |
| i. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the characteristics and processes of cells and living organisms. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| j. Apply knowledge of engineering design practices related to understanding the characteristics and processes of cells and living organisms, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
SMR II.0006 · Understand the concepts and principles related to heredity, evolution, and ecosystems.201 questions · 18 materials · 88 cards · 5 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Recognize the basic principles of heredity, the nature of the genetic code, the basic processes of DNA replication and protein synthesis, and the methods and uses of genetic engineering. | S.Structure of DNA and RNA; S.Organization of DNA; S.DNA Replication; S.Transcription; S.Translation | Covered | 42 | 5 | 24 | 0 | Covered by 5 topics (42 questions, 5 materials, 24 cards, 0 videos). |
| b. Apply knowledge of the source and importance of variation of traits in a given species. | S.Punnett Squares; S.Punnett Squares - Dihybrid Crosses | Covered | 29 | 2 | 8 | 1 | Covered by 2 topics (29 questions, 2 materials, 8 cards, 1 videos). |
| c. Apply knowledge of the principles of and evidence for biological evolution. | S.Natural Selection | Covered | 18 | 1 | 2 | 1 | Covered by 1 topic (18 questions, 1 materials, 2 cards, 1 videos). |
| d. Demonstrate knowledge of the major events in the history of life on Earth, including mass extinctions and the evolution of organisms that characterize specific periods in Earth's history. | S.Macroevolution Methods; S.Earth's History - Evolutionary History | Covered | 15 | 2 | 9 | 0 | Covered by 2 topics (15 questions, 2 materials, 9 cards, 0 videos). |
| e. Demonstrate knowledge of the characteristics of terrestrial and aquatic biomes, including representative species of plants and animals that inhabit them. | S.Major Biomes | Covered | 6 | 1 | 8 | 0 | Covered by 1 topic (6 questions, 1 materials, 8 cards, 0 videos). |
| f. Analyze the relationships between organisms in a variety of ecosystems and strategies used by different organisms to obtain the basic needs for life, including group behavior. | S.Artificial Selection; S.Adaptations; S.Mimicry; S.Populations Change (Not Individuals) | Covered | 31 | 4 | 9 | 1 | Covered by 4 topics (31 questions, 4 materials, 9 cards, 1 videos). |
| g. Demonstrate knowledge of biotic and abiotic factors that affect population dynamics in ecosystems, including competition, resource availability, and niche and habitat requirements. | S.Types of Relationships | Covered | 19 | 1 | 5 | 1 | Covered by 1 topic (19 questions, 1 materials, 5 cards, 1 videos). |
| h. Recognize the principles of biological classification. | S.Major Groups of Eukaryotic Life | Covered | 32 | 1 | 20 | 0 | Covered by 1 topic (32 questions, 1 materials, 20 cards, 0 videos). |
| i. Analyze the cycling of matter and the flow of energy through different types of ecosystems. | S.Competition | Covered | 9 | 1 | 8 | 1 | Covered by 1 topic (9 questions, 1 materials, 8 cards, 1 videos). |
| j. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the concepts and principles related to heredity, evolution, and ecosystems. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| k. Apply knowledge of engineering design practices related to understanding the concepts and principles related to heredity, evolution, and ecosystems, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
EARTH AND SPACE SCIENCE (Domain III)Partially covered
SMR III.0007 · Understand the characteristics of the formation and processes of Earth and its surface, the solar system, and the universe.263 questions · 14 materials · 174 cards · 5 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Recognize the characteristics and evolution of stars and galaxies, including theories about the origin and nature of the universe and supporting evidence. | S.Structures of Earth; S.Earth's History - Key Events; S.Origin of the Universe | Covered | 32 | 3 | 42 | 1 | Covered by 3 topics (32 questions, 3 materials, 42 cards, 1 videos). |
| b. Analyze the interactions of the sun, the moon, and Earth and the effects of these interactions on Earth. | S.Seasons; S.Tides; S.Lunar Cycle; S.Eclipses | Covered | 73 | 4 | 36 | 2 | Covered by 4 topics (73 questions, 4 materials, 36 cards, 2 videos). |
| c. Demonstrate knowledge of the role of gravity in the solar system and the universe. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| d. Demonstrate knowledge of the characteristics of objects in the solar system (e.g., formation, history, structure, distance, size). | S.Components of the Solar System; S.The Sun | Covered | 29 | 2 | 45 | 0 | Covered by 2 topics (29 questions, 2 materials, 45 cards, 0 videos). |
| e. Apply knowledge of geologic evidence (e.g., rock strata, fossils, plate tectonics) to support the timeline of Earth's geologic history. | S.Constructive and Destructive Processes; S.Tectonic Plate Theory; S.Formation of Fossils | Covered | 79 | 3 | 31 | 1 | Covered by 3 topics (79 questions, 3 materials, 31 cards, 1 videos). |
| f. Analyze tectonic processes, the mechanisms driving plate movements, and the landforms and geologic phenomena produced by movement at plate boundaries. | S.Constructive and Destructive Processes | Covered | 29 | 1 | 14 | 1 | Covered by 1 topic (29 questions, 1 materials, 14 cards, 1 videos). |
| g. Demonstrate knowledge of the processes involved in the rock cycle and of the characteristics of igneous, metamorphic, and sedimentary rocks, including the characteristics and origins of common rocks, minerals, and fossils. | S.Properties of Rocks and Minerals; S.Rock Cycle | Covered | 50 | 2 | 22 | 1 | Covered by 2 topics (50 questions, 2 materials, 22 cards, 1 videos). |
| h. Analyze the constructive and destructive processes that shape Earth's surface, including weathering, erosion, transportation, and deposition. | S.Constructive and Destructive Processes | Covered | 29 | 1 | 14 | 1 | Covered by 1 topic (29 questions, 1 materials, 14 cards, 1 videos). |
| i. Recognize the characteristics and origins of mineral, geothermal, and fossil fuel resources. | S.Properties of Rocks and Minerals | Covered | 26 | 1 | 17 | 0 | Covered by 1 topic (26 questions, 1 materials, 17 cards, 0 videos). |
| j. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding the characteristics of Earth, the solar system, and the universe. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| k. Apply knowledge of engineering design practices related to understanding the characteristics of Earth, the solar system, and the universe, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
SMR III.0008 · Understand Earth's systems and human interrelationships with them.177 questions · 14 materials · 94 cards · 4 videosPartially covered
| Official competency | Matching 240 topics | Alignment | Qs | Mats | Cards | Vids | Notes |
|---|---|---|---|---|---|---|---|
| a. Analyze the physical processes and interactions of the hydrologic cycle with Earth's atmosphere, geosphere, and biosphere. | S.Water Cycle | Covered | 20 | 1 | 9 | 1 | Covered by 1 topic (20 questions, 1 materials, 9 cards, 1 videos). |
| b. Identify the processes and characteristics of marine and freshwater systems, including oceans, rivers, lakes, groundwater systems, and glaciers. | S.Surface Water vs Groundwater; S.Bodies of Water; S.Water Cycle; S.Types of Precipitation | Covered | 46 | 4 | 32 | 1 | Covered by 4 topics (46 questions, 4 materials, 32 cards, 1 videos). |
| c. Demonstrate knowledge of the structure, functions, and characteristics of the different layers of Earth's atmosphere | S.Composition and Layers of the Atmosphere | Covered | 20 | 1 | 12 | 1 | Covered by 1 topic (20 questions, 1 materials, 12 cards, 1 videos). |
| d. Analyze atmospheric conditions and geographic factors that produce weather and natural hazards in different parts of the world, and use weather maps and data to predict and explain weather events. | S.Weather vs Climate; S.Air Masses and Ocean Currents; S.Global Winds; S.Effects of Land on Climate; S.Weather Tools; S.Weather Charts | Covered | 61 | 6 | 38 | 1 | Covered by 6 topics (61 questions, 6 materials, 38 cards, 1 videos). |
| e. Recognize factors controlling regional and global climate conditions and the role of humans in causing changes in climate, including the greenhouse effect and the roles of Earth systems in regulating change. | S.Human Populations Impact the Earth | Covered | 20 | 1 | 3 | 0 | Covered by 1 topic (20 questions, 1 materials, 3 cards, 0 videos). |
| f. Recognize how current changes in global climate are affecting Earth systems (e.g., ecosystems, the hydrosphere, coastal processes, agriculture). | S.Human Populations Impact the Earth | Covered | 20 | 1 | 3 | 0 | Covered by 1 topic (20 questions, 1 materials, 3 cards, 0 videos). |
| g. Analyze the positive and negative impacts on the environment that result from the extraction, development, use, and/or disposal of natural and synthetic materials (e.g., antibiotics, pesticides, plastics, nitrates, fossil fuels). | S.Human Populations Impact the Earth | Covered | 20 | 1 | 3 | 0 | Covered by 1 topic (20 questions, 1 materials, 3 cards, 0 videos). |
| h. Demonstrate knowledge of the ways in which science, engineering practices, and technology can be used to reduce humans' impact on the environment. | S.Environmental Stewardship; S.Renewable vs Nonrenewable | Covered | 30 | 2 | 12 | 1 | Covered by 2 topics (30 questions, 2 materials, 12 cards, 1 videos). |
| i. Apply knowledge of the principles and procedures of designing and carrying out scientific investigations, including appropriate safety procedures; apply mathematical and computational skills to scientific investigations; and analyze scientific data related to understanding Earth's hydrosphere, atmosphere, weather, and climate. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
| j. Apply knowledge of engineering design practices related to understanding Earth's hydrosphere, atmosphere, weather, and climate, including identifying criteria and constraints for a given problem, using iterative design, and evaluating an engineering/technical solution. | None | Coverage gap identified | 0 | 0 | 0 | 0 | No matching topic found in the study guide. |
How 240 Creates The NES Middle Grades General Science (205) Study Guide
Every 240 study guide starts with the official exam framework. From there, we organize lessons, practice, and study tools around the categories the exam uses to measure candidate knowledge.
Review the official exam framework
We begin with the standards, domains, competencies, objectives, or content categories published by the testing authority.
Map the tested categories
We map every major area the exam is designed to cover so the guide reflects the real structure of the test.
Build lessons around tested content
We create study materials to support the official blueprint, not broad filler content.
Cross-check practice against exam expectations
We review practice content against the framework and real exam patterns so preparation stays targeted.
Review and update as standards change
When official frameworks change, we review guides and update alignment as needed.
Reviewed by subject-matter experts and maintained to reflect current standards.
Why 240 Is Better Than Other Generic Study Guides
Not all study guides are built the same way. Here is what separates a test-aligned guide from a generic one — and why it matters when you are preparing for the NES Middle Grades General Science.
Generic prep
- Covers broad subject areas without structure
- No clear connection to the official exam framework
- Practice questions may not reflect the real test format
- May not update when official standards change
- Can be helpful for quick, broad review
240 test-aligned NES 205 prep
- Every lesson maps to an official domain or competency
- Built directly from the official exam framework
- Practice questions aligned to what the exam actually measures
- A clear study path by tested category
- Study smarter and enter test day more prepared
FAQs About the NES Middle Grades General Science Study Guide
The questions teacher candidates ask us most often about the NES Middle Grades General Science study guide.
Is 240 a good study guide for NES Middle Grades General Science?
240 is a strong option because the guide is built around the official exam framework and shows detailed alignment by SMR and competency.
How closely does 240 align to the NES 205 exam?
This guide is 81% aligned based on a competency-by-competency review of the official framework and the study resources included in the guide.
Does 240 cover every competency?
This page shows coverage transparently across covered, partially covered, and identified gaps so candidates can see exactly how the guide maps to the exam.
What does “partially covered” mean?
Partially covered means the guide addresses the core parts of a competency, but some depth or subtopics may still be limited.