New Mexico

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Skills available for New Mexico eighth-grade science standards

Standards are in black and IXL science skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.

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I Scientific Thinking and Practice

II Content of Science

  • I Understand the structure and properties of matter, the characteristics of energy, and the interactions between matter and energy.

    • I Know the forms and properties of matter and how matter interacts.

    • II Explain the physical processes involved in the transfer, change, and conservation of energy.

      • Energy Transformation

        • 1 Know that energy exists in many forms and that when energy is transformed some energy is usually converted to heat.

        • 2 Know that kinetic energy is a measure of the energy of an object in motion and potential energy is a measure of an object's position or composition, including:

        • 3 Distinguish between renewable and nonrenewable sources of energy.

        • 4 Know that electrical energy is the flow of electrons through electrical conductors that connect sources of electrical energy to points of use, including:

          • electrical current paths through parallel and series circuits

          • production of electricity by fossil-fueled and nuclear power plants, wind generators, geothermal plants, and solar cells

          • use of electricity by appliances and equipment (e.g., calculators, hair dryers, light bulbs, motors).

      • Waves

        • 5 Understand how light and radio waves carry energy through vacuum or matter by:

          • straight-line travel unless an object is encountered

          • reflection by a mirror, refraction by a lens, absorption by a dark object

          • separation of white light into different wavelengths by prisms

          • visibility of objects due to light emission or scattering.

        • 6 Understand that vibrations of matter (e.g., sound, earthquakes, water waves) carry wave energy, including:

          • sound transmission through solids, liquids, and gases

          • relationship of pitch and loudness of sound to rate and distance (amplitude) of vibration

          • ripples made by objects dropped in water.

    • III Describe and explain forces that produce motion in objects.

      • Forces

        • 1 Know that there are fundamental forces in nature (e.g., gravity, electromagnetic forces, nuclear forces).

        • 2 Know that a force has both magnitude and direction.

        • 3 Analyze the separate forces acting on an object at rest or in motion (e.g., gravity, elastic forces, friction), including how multiple forces reinforce or cancel one another to result in a net force that acts on an object.

        • 4 Know that electric charge produces electrical fields and magnets produce magnetic fields.

        • 5 Know how a moving magnetic field can produce an electric current (generator) and how an electric current can produce a magnetic field (electromagnet).

        • 6 Know that Earth has a magnetic field.

      • Motion

        • 7 Know that an object's motion is always described relative to some other object or point (i.e., frame of reference).

        • 8 Understand and apply Newton's Laws of Motion:

          • Objects in motion will continue in motion and objects at rest will remain at rest unless acted upon by an unbalanced force (inertia).

          • If a greater force is applied to an object a proportionally greater acceleration will occur.

          • If an object has more mass the effect of an applied force is proportionally less.

  • II Understand the properties, structures, and processes of living things and the interdependence of living things and their environments.

  • III Understand the structure of Earth, the solar system, and the universe, the interconnections among them, and the processes and interactions of Earth's systems.

    • I Describe how the concepts of energy, matter, and force can be used to explain the observed behavior of the solar system, the universe, and their structures.

      • 1 Understand how energy from the sun and other stars, in the form of light, travels long distances to reach Earth.

      • 2 Explain how the properties of light (e.g., emission, reflection, refraction) emitted from the sun and stars are used to learn about the universe, including:

        • distances in the solar system and the universe

        • temperatures of different stars.

      • 3 Understand how gravitational force acts on objects in the solar system and the universe, including:

        • similar action on masses on Earth and on other objects in the solar system

        • explanation of the orbits of the planets around the sun.

    • II Describe the structure of Earth and its atmosphere and explain how energy, matter, and forces shape Earth's systems.

      • 1 Describe the role of pressure (and heat) in the rock cycle.

      • 2 Understand the unique role water plays on Earth, including:

      • 3 Understand the geologic conditions that have resulted in energy resources (e.g., oil, coal, natural gas) available in New Mexico.

III Science and Society

  • I Understand how scientific discoveries, inventions, practices, and knowledge influence, and are influenced by, individuals and societies.

    • I Explain how scientific discoveries and inventions have changed individuals and societies.