Grade 8

Ask Questions & Define Problems

Ask Questions & Define Problems 2

Matter Properties and Change

Forces & Motion

Energy Conservation and Transfer

Describe how scientific explanations are uncertain and subject to revision based on new evidence.

Independently or collaboratively, plan and efficiently execute lab techniques to collect sufficient and relevant data to communicate findings.

Create appropriate tables and graphs using mathematical representations.

Construct predictions and explanations based on evidence and data.

Generate a claim based on qualitative and quantitative evidence.

Appropriately use scientific tools for measurement and data collection

Explain and analyze achievements and milestones in scientific exploration and how technology has increased our scientific knowledge.

Identify types of variables in an experiment.

Apply the metric system and conversions to real-world situations.

Classify matter as elements, compounds, or mixtures.

Describe how each stage of atomic theory has contributed to our current understanding of the structure of the atom.

Determine how subatomic particles affect an atom's behavior and classification.

Provide quantitative evidence to support the law of conservation of matter.

Utilize the octet rule to predict and draw ions and bonding.

Explain how the physical properties of elements and their reactivity have been used to produce the current model of the Periodic Table of elements.

Identify and provide examples of physical, chemical, intensive, and extensive properties.

Calculate the density of liquids, regularly, and irregularly shaped objects.

Interpret a phase change diagram to explain how heat energy affects particles both on a microscopic level and a macroscopic level.

Compare physical changes such as size, shape, and shape to chemical changes that are the result of a chemical reaction to include changes in temperature, color, formation of a gas or precipitate.

Explain how to utilize physical properties to separate a mixture.

Explain the factors that affect the rate of a reaction.

Describe an object’s motion by its position, direction, and speed with respect to a reference point.

Analyze and construct speed and acceleration graphs for constant and variable motions.

Explain and calculate the effects of balanced and unbalanced forces acting on an object.

Qualitatively and quantitatively describe the mechanical advantage and efficiency of various simple machines.

Recognize that energy can be transferred from one system to another when two objects push or pull on each other over a distance (work).

Explain how energy can be transformed from one form to another (specifically potential and kinetic energy) using a model or diagram of a moving object qualitatively and quantitatively.

Explain how kinetic and potential energy contribute to the mechanical energy of an object.

Identify and calculate the characteristics of waves such as wavelength, frequency, and speed.

Compare the wave characteristics of the parts of the electromagnetic spectrum.

Predict how light interacts with each other and with matter.

Describe ways images are formed by lenses and mirrors.

Explain how the eye functions and works with the brain to produce vision.