- 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.
investigate and compare a variety of mixtures, including solutions that are composed of liquids in liquids and solids in liquids; and
demonstrate that matter is conserved when mixtures such as soil and water or oil and water are formed.
Patterns are regular sequences that can be found throughout nature.
Patterns in the rate of dissolution can be observed with changes in temperature, surface area, and agitation. These patterns can be graphed (modeled).
Cause-and-effect relationships are relationships between two or more variables or phenomena whereby one variable or event leads to a predictable response. Events have causes—sometimes simple, sometimes multi-faceted.
A change in temperature, surface area, and agitation (cause) influences the rate of dissolution (effect) of a solid into an aqueous solution.
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.
The measurement of temperature (quantity), surface area (quantity), and rate of agitation (proportion) are used to investigate the effect on the rate of dissolution.
Matter and energy are conserved, changing forms but maintaining quantities. Energy flows within a system or between systems through transfers and transformations. Matter is cycled within systems through physical and chemical processes.
When thermal energy or agitation are added, energy flows into a solution, increasing the solution's kinetic energy and affecting the dissolution rate.
Math.7.4.A represent constant rates of change in mathematical and real-world problems given pictorial, tabular, verbal, numeric, graphical, and algebraic representations, including d = rt
Math.7.4.C determine the constant of proportionality (k = y/x) within mathematical and real-world problems
ELAR.7.5.E make connections to personal experiences, ideas in other texts, and society
ELAR.7.5.F make inferences and use evidence to support understanding
ELAR.7.5.H synthesize information to create new understanding
ELAR.7.12.B develop and revise a plan
ELAR.7.12.F synthesize information from a variety of sources
TA.7.6.A use digital tools in order to transform data to analyze trends and make inferences and predictions
TA.7.7.A use digital tools to communicate and display data from a product or process to inform or persuade an intended audience