2“Big Ideas” in Physical Science – Overview Properties of Matter Changes in Matter Forms of Energy Energy Transfers Force and Motion
3Properties of MatterAll objects and substances in the world are made of matter. Matter has two fundamental properties: matter takes up space and matter has mass.Objects and substances can be classified by their physical and chemical properties.Mass is the amount of matter (or "stuff") in an object. Weight, on the other hand, is the measure of force of attraction (gravitational force) between an object and Earth.
4Changes in Matter Matter can undergo a variety of changes. Matter can be changed physically or chemically.
5Forms of EnergyA. Energy is involved in all physical processes and is a unifying concept in many areas of science.B. Energy exists in many forms and has the ability to do work or cause a change.
6Energy Transfer and Transformations A. Waves involve a transfer of energy without a transfer of matter.B. Water and sound waves transfer energy through a material.C. Light waves can travel through a vacuum and through matter.
7Motion of ObjectsA. Motion is a key characteristic of all matter that can be observed, described, and measured.B. The motion of objects can be changed by forces.
8Forces and Changes in Motion A. It takes energy to change the motion of objects.B. Energy change is understood in terms of forces--pushes or pulls.Some forces act through physical contact, while others act at a distance.
9Investigations vs. Experiments An investigation is a procedure that is carried out to gather data about an object or event.An experiment is a procedure you carry out under controlled conditions to test a hypothesis.
14Changes in MatterPhysical Changes - usually a change of shape, size, or state. No new matter, no new properties.Chemical Changes - New properties, often a change in color or temperature. Often produces a new gas or solid.
15Session 3 - Energy Energy - The ability to cause a change Forms of EnergyTransformation and ChangesEnergy, Force, and Motion