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Skills available for Colorado seventh-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.

  • 1 Mixtures of substances can be separated based on their properties such as solubility, boiling points, magnetic properties, and densities

    • a Identify properties of substances in a mixture that could be used to separate those substances from each other

    • b Develop and design a scientific investigation to separate the components of a mixture

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 Major geologic events such as earthquakes, volcanic eruptions, mid-ocean ridges, and mountain formation are associated with plate boundaries and attributed to plate motions

  • 2 Geologic time, history, and changing life forms are indicated by fossils and successive sedimentation, folding, faulting, and uplifting of layers of sedimentary rock

    • a Describe the geologic time scale and why it is used

    • b Identify and describe the impact of major geologic events on life on Earth

    • c Identify and describe major events in Earth's geologic history

    • d Use direct and indirect evidence to determine the sequence of events in geologic time