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Science.7.6.A

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The student is expected to compare and contrast elements and compounds in terms of atoms and molecules, chemical symbols, and chemical formulas;

A student expectation is directly related to the knowledge and skills statement, is more specific about how students demonstrate their learning, and always begins with a verb. Student expectations are further broken down into their component parts, often referred to as “breakouts.”

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SCIENCE.7.6.A — Vertical Alignment

Vertical alignment shows student expectations in the same subject area at different grade levels that are related to or build upon one another.

S.5.6.D
illustrate how matter is made up of particles that are too small to be seen such as air in a balloon.
S.7.6.A
compare and contrast elements and compounds in terms of atoms and molecules, chemical symbols, and chemical formulas;
S.7.6.B
use the periodic table to identify the atoms and the number of each kind within a chemical formula;
IPC.7.A
model basic atomic structure and relate an element's atomic structure to its bonding, reactivity, and placement on the Periodic Table;
CHEM.5.C
analyze and interpret elemental data, including atomic radius, atomic mass, electronegativity, ionization energy, and reactivity to identify periodic trends.
CHEM.6.A
construct models using Dalton's Postulates, Thomson's discovery of electron properties, Rutherford's nuclear atom, Bohr's nuclear atom, and Heisenberg's Uncertainty Principle to show the development of modern atomic theory over time;
CHEM.6.B
describe the structure of atoms and ions, including the masses, electrical charges, and locations of protons and neutrons in the nucleus and electrons in the electron cloud;
CHEM.6.D
calculate average atomic mass of an element using isotopic composition; and
CHEM.7.A
construct an argument to support how periodic trends such as electronegativity can predict bonding between elements;
Next grade

Recurring themes and concepts — Connections to the content

Recurring themes and concepts provide a connective structure for scientific ideas across disciplines. The connection(s) below show some ways that teachers can help students understand how the content they are learning fits into the broader understanding of science. These connections do not represent all possible connections that might be made but highlight some that are appropriate for this grade level.
Patterns

Patterns are regular sequences that can be found throughout nature.

Classifying a substance as an element or a compound relies on the pattern of the number and identity of the elements present. For example, compounds will always have more than one type of element. If there is only one type of element present, even if there are more than one of them, it is not a compound. O2 is made up of two oxygen atoms and is an element, not a compound.

Model the interdependence and parts of a system

A system is a whole made of parts that work together. It has components and boundaries. It can interact with or be part of other systems.

Compounds are made up of different elements, and atoms (parts) are the building blocks of compounds. Atoms interact (bond) to create compounds.

Cross-curricular Connections

The cross-curricular connections are designed to help educators make content connections between the science TEKS and math, English language arts and reading, social studies, and technology applications. The standards below illustrate alignment between grade level content areas which may help educators develop cross-curricular lessons. These connections do not represent all possible connections that might be made.
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English Language Arts and Reading

ELAR.7.5.F make inferences and use evidence to support understanding

ELAR.7.5.G evaluate details read to determine key ideas

ELAR.7.5.H  synthesize information to create new understanding

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