Science Elementary School Programs - Third 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 3, students learn that the study of science uses appropriate tools and safe practices
in planning and implementing investigations, asking and answering questions, collecting
data by observing and measuring, and by using models to support scientific inquiry about
the natural world.

  • Students recognize that patterns, relationships, and cycles exist in matter.
    Students will investigate the physical properties of matter and will learn that changes occur.
    They explore mixtures and investigate light, sound, and heat/thermal energy in everyday life.
    Students manipulate objects by pushing and pulling to demonstrate changes in motion and
    position.
  • Students investigate how the surface of Earth changes and provides resources that
    humans use
    . As students explore objects in the sky, they describe how relationships affect
    patterns and cycles on Earth. Students will construct models to demonstrate Sun, Earth, and
    Moon system relationships and will describe the Sun's role in the water cycle.
  • Students explore patterns, systems, and cycles within environments by
    investigating characteristics of organisms, life cycles, and interactions among all
    components of the natural environmen
    t. Students examine how the environment plays
    a key role in survival. Students know that when changes in the environment occur organisms
    may thrive, become ill, or perish.

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