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Skills available for Colorado 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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1 Students know and understand common properties, forms and changes in matter and energy.

2 Students know and understand the characteristics and structure of living things, the processes of life and how living things interact with each other and their environment.

3 Students know and understand the processes and interactions of Earth's systems and the structure and dynamics of Earth and other objects in space.

  • 1 Weather is a result of complex interactions of Earth's atmosphere, land and water, that are driven by energy from the sun, and can be predicted and described through complex models

    • a Differentiate between basic and severe weather conditions, and develop an appropriate action plan for personal safety and the safety of others

    • b Observe and gather data for various weather conditions and compare to historical data for that date and location

    • c Use models to develop and communicate a weather prediction

  • 2 Earth has a variety of climates defined by average temperature, precipitation, humidity, air pressure, and wind that have changed over time in a particular location

    • a Develop, communicate and justify an evidence-based scientific explanation to account for Earth's different climates

    • b Research and evaluate direct and indirect evidence to explain how climates vary from one location to another on Earth

    • c Examine, evaluate, and question information from a variety of sources and media to investigate how climates vary from one location to another on Earth

  • 3 The solar system is comprised of various objects that orbit the Sun and are classified based on their characteristics

    • a Construct a scale model of the solar system, and use it to explain the motion of objects in the system such a planets, Sun, Moons, asteroids, comets, and dwarf planets

    • b Describe methods and equipment used to explore the solar system and beyond

    • c Design an investigation that involves direct observation of objects in the sky, and analyze and explain results

    • d Research, critique, and communicate scientific theories that explain how the solar system was formed

    • e Use computer data sets and simulations to explore objects in the solar system

    • f Recognize that mathematical models are used to predict orbital paths and events

  • 4 The relative positions and motions of Earth, Moon, and Sun can be used to explain observable effects such as seasons, eclipses, and Moon phases

    • a Develop, communicate, and justify an evidence-based explanation using relative positions of Earth, Moon, and Sun to explain the following natural phenomenon:

      • 1 Tides

      • 2 Eclipses of the Sun and Moon

      • 3 Different shapes of the Moon as viewed from Earth

    • b Analyze and interpret data to explain why we have seasons

    • c Use models to explain the relative motions of Earth, Moon, and Sun over time