1st Grade Science

  • The performance expectations in first grade help students formulate answers to questions such as: “What is the weather like today and how is it different from yesterday?, “How can weather be described by measurable features, such as temperature and precipitation?”,  “How are materials similar and different from one another, and how do the properties of the materials relate to their use?”, “What are some ways organisms meet their needs so that they can survive and grow?”, “What metamorphoses do butterflies undergo to define their life cycle?”  First grade performance expectations are based on the Pennsylvania Academic Standards for Science and Technology and Environment and Ecology and the Next Generation Disciplinary Core Ideas and Performance Expectations. Students are expected to develop understandings of how the sun, air, and water cycle work together to give us weather. Students use measurements and recordings to help predict daily weather.  Students are expected to understand that solids and liquids have unique properties and can identify those properties through testing.  Students are expected to understand organisms have basic needs that are met by their environments and will create a model showing the interdependence between the organisms and their environment.  In the first grade performance expectations, students are expected to demonstrate grade-appropriate proficiency in planning and carrying out investigations, analyzing and interpreting data, constructing explanations and designing solutions, and obtaining, evaluating, and communicating information.  Students are expected to use these practices to demonstrate understanding of the core ideas.

    In 1st Grade Science, students will know that....

    Weather

    • Weather is the combination of sunlight, wind, snow or rain, and temperature in a particular region at a particular time.
    • Weather changes from day to day and season to season.
    • Weather can be described by measurable features, such as temperature and rainfall.
    • The sun, air, and water cycle work together to give us weather.
    • Measurements and records help us predict weather and make decisions about our daily lives

    Solids and Liquids

    • Different kinds of matter exist in various states.
    • Solids and liquids are two states of matter. Each state has different properties.
    • Solids and liquids can be described and classified on the basis of their properties.
    • Solids and liquids have unique properties. Testing can identify properties that cannot be detected by the senses alone.

    Life Cycles

    • Organisms obtain the materials they need to grow and survive from their environment.
    • Organisms have external structures that serve various functions in growth, survival, behavior, and reproduction.
    • Plants and animals have a life cycle.
    • Organisms change their forms and behaviors as part of their life cycles.
    • Organisms can survive only in environments where their basic needs are met.
    • Butterflies undergo a series of metamorphoses that define their life cycles.
    • Butterflies go through several changes during their life cycles. Like all other organisms, butterflies have basic needs.

    In 1st Grade Science, students will develop the following skills...

    Weather

    • Use and share observations of local weather conditions to describe patterns over time.
    • Approach science as a reliable and tentative way of knowing and explaining the natural world and apply this understanding to a variety of situations.
    • Weigh evidence and use scientific approaches to ask questions, investigate, make informed decisions about how they live their daily lives, and engage in their vocations and communities.
    • Make and use observations to identify and analyze relationships and patterns in order to explain phenomena, develop models, and make predictions.
    • Evaluate systems, including their components and subsystems, in order to connect how form determines function and how any change to one component affects the entire system.
    • Explain how the natural and designed worlds are interrelated and the application of scientific knowledge and technology can have beneficial, detrimental, or unintended consequences.

    Solids and Liquids

    • Observe, describe, and classify matter by properties and uses (e.g., size, shape, weight, solid, liquid, gas, weight, texture, flexibility, hardness, color, etc.).
    • Plan and carry out investigations to test the idea that warming some materials causes them to change from solid to liquid and cooling causes them to change from liquid to solid.
    • Approach science as a reliable and tentative way of knowing and explaining the natural world and apply this understanding to a variety of situations.
    • Weigh evidence and use scientific approaches to ask questions, investigate, make informed decisions about how they live their daily lives, and engage in their vocations and communities.
    • Make and use observations to identify and analyze relationships and patterns in order to explain phenomena, develop models, and make predictions.

    Life Cycles

    • Make observations and describe the different parts of organisms that help them survive, grow, and meet their needs.
    • Conduct an investigation (e.g. plant seeds, eggs) and cite evidence of change from young to adult.
    • Observe and compare the stages of life cycles of organisms (plants & animals).
    • Approach science as a reliable and tentative way of knowing and explaining the natural world and apply this understanding to a variety of situations.
    • Weigh evidence and use scientific approaches to ask questions, investigate, make informed decisions about how they live their daily lives, and engage in their vocations and communities.
    • Make and use observations to identify and analyze relationships and patterns in order to explain phenomena, develop models, and make predictions.