- Science
- Grade 7
- Matter and energy
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.”
Vertical alignment shows student expectations in the same subject area at different grade levels that are related to or build upon one another.
It is important to consider how changes in scale, proportion, or quantity affect a system’s structure or performance. Scale refers to the size of an object in relation to another object or its environment. Proportion is the ratio of one quantity to another. Quantity is a count of a set of objects or a measurement of a substance.
Subscripts in a chemical formula determine the number (quantity) of each type of element in the substance. A chemical formula indicates a specific ratio (proportion) of elements. For example, H20 is a proportion of 2:1.