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Physical Properties
What is Matter?
• Matter is – Anything that has mass and takes up space.– Ex. Solids, liquids, & gases. – ANYTHING = EVERYTHING
What is Mass?
• Mass is – A measure of the amount of matter in an object.
• We use the Metric System* (In science) – g or kg– Ex. A paper clip has a mass of 1 g and 1 kg is equal to 2.2 pounds(lbs)
What is Weight?
• Weight is– The effect of gravity on mass.
• This changes depending on where you are.– For example: You weigh 100 lbs on earth• You weigh 16.6 lbs on the moon.
• http://www.exploratorium.edu/ronh/weight/
Volume & Density
• Volume is– The amount of space that an object takes up.
• We use– L (liters) for liquids– cm3 (centimeters cubed) for solid objects.
• Density is– How tightly an object’s mass is packed into it’s
volume.
Density, Mass, & Volume
• D= – Density
• M=– Mass
• V=– Volume
• Equation to remember: D= M/V or
What is an Element?
• An element is – A pure substance that is made of the same type of
matter. • An element CANNOT be– Broken down by physical OR chemical means.
• 92 occur in nature (natural) – The rest are man made (in lab)
• They are arranged by their– Atomic number on the periodic table.
What are Physical Properties?
• A physical property is a property that can be observed or measured– Without changing the substance itself.
• Ductile-– Can be pulled into a wire.
• Color, odor (how it smells), texture ( how it feels).
• Luster- – The way it reflects light.
More Physical Properties
• Hardness-– Resists being scratched
• Diamonds are the hardest and are a 10 on the MOHS scale.
• Conductivity-– How easily electricity or heat moves through it.
• Magnetism-– How it responds to a magnetic field. ( is it magnetic?)
• Malleable-– Can be hammered into sheets.
• Streak-– Color a mineral makes on a tile plate.
More Physical Properties
• Solubility-– How it dissolves in water. (Is it soluble?)
• Brittle-– How easily it breaks.
• Sonorous-– The sound produced when metal is struck. (Ex. A
bell)
What Physical Property am I?
• Ductile
• Luster
• Streak
• Sonorous
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