Ohio Learning Standards for Science — Grade 3

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Some of Earths resources become limited due to overuse and/or contamination. Reducing resource use, decreasing waste and/or pollution, recycling and reusing can help conserve these resources.


Soil is composed of pieces of rock, organic material, water and air and has characteristics that can be measured and observed. Rocks have unique characteristics that allow them to be sorted and classified. Rocks form in different ways. Air and water are nonliving resources.


Many of Earths resources can be used for the energy they contain. Renewable energy is an energy resource, such as wind, water or solar energy, that is replenished within a short amount of time by natural processes. Nonrenewable energy is an energy resource, such as coal or oil, that is a finite energy source that cannot be replenished in a short amount of time.


Individual organisms inherit many traits from their parents indicating a reliable way to transfer information from one generation to the next.


Some behavioral traits are learned through interactions with the environment and are not inherited


Plants and animals have physical features that are associated with the environments where they live.


Plants and animals have certain physical or behavioral characteristics that improve their chances of surviving in particular environments.


Individuals of the same kind have different characteristics that they have inherited. Sometimes these different characteristics give individuals an advantage in surviving and reproducing.


Over the whole earth, organisms are growing, reproducing, dying and decaying. The details of the life cycle are different for different organisms, which affects their ability to survive and reproduce in their natural environments.


Matter takes up space and has mass


The most common states of matter are solids, liquids and gases.


Shape and compressibility are properties that can distinguish between the states of matter.


One way to change matter from one state to another is by heating or cooling.


There are many different forms of energy. Energy is the ability to cause motion or create change.