Density
James measures a piece of wood and determines it has a mass of 40 grams and a volume of 8 cm3. What is the density of the wood?
5g/cm3
An element is?
An element is the simplest pure substances made of just one type of atom
When the temperature of a liquid rises, its what rises?
Kinetic energy increases, thermal energy increases
Can you measure the mass of a solid by putting it in water?
NO!!! You need a scale!!!
They start November 5th!
Billy has a bike with a mass of 20 grams and a volume of 10cm3. What is the density of the bike?
2g/cm3
What is a physical property?
A physical property is a property that can be identified, observed, or measured and DOES NOT RELY on testing if the material reacts with another substance
When the temperature of a gas goes down, its what goes down?
Kinetic Energy decreases, Thermal Energy decreases
Is a color of an object a chemical property?!?!
NO!!! Its a physical property!!!
What is Mr. Wade's favorite snack?
GOLDFISH
Mindy has a computer with a mass of 50 grams and a volume of 10cm3. What is the density of the computer?
5g/cm3
A molecule is?
A molecule is two or more atoms held together by chemical bonds.
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Is if a substance starts on fire or is flammable a chemical property?!?!
YES!!! It is a chemical property!!!
What is Mr. Wade's favorite color?
Purple
Your teacher holds up a solid and says this malleable solid is more dense than phosphorus. He gives you this information:
Phosphorus: solid, malleable, 7.13 density
Lead: solid, malleable, 8.9 density
Gold: solid, non-malleable, 2.26 density
Which solid is he holding?
Lead
What is Thermal Energy?
Thermal Energy is Heat Energy. The more heat something has, the more thermal energy it has.
Most elements are a what at room temperature? (solid, liquid, or gas?)
Solid!
Are molecules made from only one atom?!?!
NO!!! Molecules are two or more atoms chemically bonded together!!!
What is Mr. Wade's dog's name?
Alfie
2.5g/cm3
What is a chemical property?
A chemical property describes how a material REACTS with another substance, for example does it react with acid.
When the temperature of a solid rises, its what rises?
Kinetic Energy increases, Thermal Energy increases
If something is resistant to breaking at low temperatures or is Good at low temperatures, is it a good material to use as a food container to put in the freezer?!?!
YES!!! It can handle being at low temperatures which is what we want for a freezer food container!!!
When is Mr. Wade's birthday?
April 5th