4th Grade Science

  • Click a unit in the list below or check out the Essential Questions and/or Content Learning Targets.

    SIMPLE MACHINES

    Essential Question(s) 

    How do simple machines help us to do work?

    Content Learning Targets

    • Students make a device for measuring the strength of a push or pull
    • Students learn that work is accomplished when a force is applied to an object and the object moves
    • Students are introduced to the six types of simples machines:
      • the lever
      • the wheel and axle
      • pulley
      • inclined plane
      • wedge
      • screw
    • Students discover that friction is a force that resists motion
    • Students discover how wheels reduce friction
    • Students investigate how gears are used to transfer force and motion
    • Simple machines make work easier

    ASTRONOMY

    Essential Question(s)

    How do movements within the solar system affect everyday life?


    Content Learning Targets

    • Natural Cycles and patterns with the solar system include:
    • Earth spinning around once every 24 hours (rotation), resulting in day and night
    • Earth moving in a path around the Sun (revolution), resulting in one earth year
    • The length of daylight and darkness vary with the seasons
    • The appearance of the Moon changes as it moves in a path around Earth to complete a single cycle (phases of the moon)
    • Sun and other stars appear to move in a recognizable patterns both daily and seasonally (constellations)


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    Essential Question(s)

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    Content Learning Targets

    • Erosion and deposition result from the interaction among air, water, and land

    • interaction between air and water breaks down earth materials
    • pieces of earth material may be moved by air, water, wind, and gravity
    • pieces of earth material will settle or deposit on land or in the water in different places
    • soil is composed of broken-down pieces of living and nonliving earth material


    ENERGY - ELECTRICITY

    Essential Question(s)

    How are matter and energy related?

    How can energy be changed?

    Where can we find sources of energy?

    How do humans utilize interactions between matter and energy?


    Content Learning Targets

    •  Energy exists in various forms:
      •  Electrical Energy – energy in a closed circuit
    • Energy can be transformed from one place to another.
    • Some materials transfer energy better than others (heat and electricity):
      • conductors vs insulators
      • convection
      • radiation
    • Properties can observed with tools:
      • circuit testers
      • thermometers
    • Energy and matter interact:
      • a bulb is lighted by means of electrical current
    •  Humans utilize interactions between matter and energy:
      • electrical to sound (doorbell buzzer)
      • light to electrical (solor-powered calculator)
    • Everyday events involve one form of energy being changed to another
      • animals convert food to heat and motion
      • the Sun's energy warms the air and water
    • Humans utilize interactions between matter and energy
      • chemical to electrical, light, and heat: battery and bulb
      • electrical to sound (e.g. doorbell buzzer)
      • mechanical to sound (e.g. musical instruments, clapping)
      • light to electrical (e.g. solar-powered calculator)
    • Heat can be released in many ways, for example, by burning, rubbing (friction), or combining one substance with another
    • Interactions with forms of energy can be either helpful or harmful
      • energy (e.g. heat, light, and electricity)

    ENERGY - LIGHT

    Essential Question(s)

    What is light energy?

    How do light and matter interact?


    Content Learning Targets

    • Understand light waves travel in a straight line
    • Know sources of light
    • Understand that waves behave differently in a different media (water, a wall, atmosphere, a vacuum)
    • Understand the development and use of optical tools (eyeglasses, magnifying lenses)
    • Understand light energy travels in a straight line but may be refracted or reflected
    • Know:
      • Spectrum of Colors (ROYGBIV)
    • Energy and matter interact:
      • dark colors may absorb light
      • light colors may reflect light
    • Humans utilize interactions between matter and energy:
      • light to electrical (solar-powered calculator)
      • light to heat (sun's energy
      • heat to light

    ENERGY - Sound

    Essential Question(s)

    How are matter and energy related?

    How can energy be changed?

    Where can we find sources of energy?

    How do humans utilize interactions between matter and energy?

    Content Learning Targets

    • Energy exists in various forms
    • Sound energy produced by vibrating objects
      • matter has properties (color, hardness, odor, sound, taste) that can be observed
    • Energy and matter interact:
      • musical instrument is played to produce sound
    • Humans utilize interactions between matter and energy:
      • mechanical to sound (musical instrument or clapping)

    LIVING THINGS - Food Chains and Webs

    Essential Question(s)

    What is an ecosystem?

    How do ecosystems change and get energy?

    How do living things interact? (include food chains and webs?)

    Content Learning Targets

    • Nonliving things can be human-created or naturally occurring
    • Soil provides essential nutrients for optimum growth in plants (optional)
    • Plants require air, water, nutrients, and light in order to live and thrive
    • Green plants are producers because they provide the basic food supply for themselves and animals
    • Plants manufacture food by utilizing air, water, and energy from the Sun
    • Each animal has different structures that serve different functions in growth, survival, and reproduction
    • Animals respond to change in their environment (e.g. perspiration, heart rate, breathing rate, eye blinking, shivering, and salivating)
    • Senses can provide essential information (regarding danger, food, mates, etc.) to animals about their environment
    • All animals depend on plants. Some animals (predators) eat other animals (prey)
    • In order to survive in their environment, animals must be adapted to that environment
    • Food supplies the energy and materials necessary for growth and repair
    • All living things grow, take in nutrients, breathe, reproduce, and eliminate waste
    • Some characteristics results from an individual's interactions with the environment and cannot be inherited by the next generation (e.g. having scars, riding a bicycle)
    • Some traits of living things have been inherited (e.g. color of flowers and number of limbs of animals)
    • Animals adaptions include coloration for warning or attraction, camouflage, defense mechanisms, movement, hibernation, and migration
    • Individuals within a species may compete with each other for food, mates, space, water, and shelter in their environment
    • All individuals have variations, and because of these variations individuals of a species may have an advantage in surviving and reproducing
    • The sun's energy is transferred on Earth from plants to animals through the food chain
    • Seeds disperse by a plant's own mechanism and/or in a variety of ways that can include wind, water, and animals
    • Leaf, flower, stem, and root adaptions may include variations in size, shape, thickness, color, smell, and texture
    • An organism's pattern of behavior is related to the nature of that organism's environment, including the kinds and numbers of other organisms present, the availability of food and other resources, and the physical characteristics of the environment
    • When the environment changes, some plants and animals survive and reproduce, and others die or move to new locations
    • Animals that eat plants for food may in turn become food for other animals. This sequence is called a food chain
    • Decomposers are living things that play a vital role in recycling nutrients