Science Elementary School Programs - Second Grade

Science, as defined by the National Academy of Sciences, is the "use of evidence to construct
testable explanations and predictions of natural phenomena, as well as the knowledge
generated through this process."

Recurring themes are pervasive in sciences, mathematics, and technology. These ideas
transcend disciplinary boundaries and include patterns, cycles, systems, models, and
change and constancy.

The study of elementary science includes planning and safely implementing classroom and
outdoor investigations using scientific processes, including inquiry methods, analyzing
information, making informed decisions, and using tools to collect and record information,
while addressing the major concepts and vocabulary, in the context of physical, earth, and
life sciences. Districts are encouraged to facilitate classroom and outdoor
investigations for at least 60% of instructional time.

In Grade 2, careful observation and investigation are used to learn about the natural world
and reveal patterns, changes, and cycles. Students should understand that certain types of
questions can be answered by using observation and investigations and that the information
gathered in these may change as new observations are made. As students participate in
investigation, they develop the skills necessary to do science as well as develop new science

  • Within the physical environment, students expand their understanding of the
    properties of
    objects such as shape, mass, temperature, and flexibility then
    use those properties to
    compare, classify, and then combine the objects to do
    something that they could not do
    before. Students manipulate objects to demonstrate
    a change in motion and position.
  • Within the natural environment, students will observe the properties of earth
    materials as
    well as predictable patterns that occur on Earth and in the sky.
    The students understand that those patterns are used to make choices in clothing,
    activities, and transportation.
  • Within the living environment, students explore patterns, systems, and cycles by
    investigating characteristics of organisms, life cycles, and interactions among
    all the
    components within their habitat. Students examine how living organisms
    depend on each other and on their environment.

Taken from Chapter 112. Texas Essential Knowledge and Skills for Science
Subchapter A. Elementary