Daily Forecast1. What is matter2. The meaning of mass3. How is weight different and how is it

affected by gravity4. What is volume5. What is the basic building block of matter

and what is its structure?6. How are molecules and elements

different?

Matter and EnergyMatter and EnergySection 1.1 and 1.2 Section 1.1 and 1.2 ReviewReview

Mr. NighMr. NighScience 7Science 7

Matter has mass and volumeMatter has mass and volumeMatter-anything that has mass and

takes up spaceMatter- is made up of particles known

as atomsNot everything is matter. Light and

sound do not take up space or have mass

Fire has massA state of matterKnown as plasma

Mass-a measure of how much matter an object contains

Example-a metal spoon has greater mass than a plastic spoon

An elephant has greater mass than hyena

Weight- the downward pull of an object due to gravity

Mass and weight are not the same. Mass is the amount of matter. Weight describes howstrongly gravity is pulling on that matter

Gravity is the force that pulls Gravity is the force that pulls two objects with mass two objects with mass

toward each othertoward each other

Volume-the amount of space that matter in an object occupies

Same volumeNot same

mass

ATOMSSmallestSmallestBasic Basic building building blocks blocks of all of all thingsthings

MOLECULESWhen two or more atoms bond togetherWhen two or more atoms bond together

Diamond molecule

Molecules Molecules Are Are

Always Always In In

MotionMotionSolids

Liquids

Gases

http://www.youtube.com/watch?v=EH5v54dmb5U

What is a molecule that is made up of the same atoms known as?

ElementElement

Aluminum Carbon Mercury