States of Matter
Physical Properties
Physical Changes
Solubility
Vocabulary
100
What is matter?
Anything that has mass and occupies space.
100
What is one example of a physical property?
Length, color, density, hardness, shape, mass, elasticity, volume, shiny, conduction, magnetism, etc.
100
Define "physical change".
Physical change is when matter changes form (state or appearance) but not it's molecular identity. The matter is still the same matter before and after the change
100
What is "solubility"?
Solubility is a material’s ability to dissolve.
100
Define mass.
The amount of matter and object has, like weight.
200
What is matter made of?
Atoms and molecules
200
How do we determine the physical properties of matter?
By using our 5 senses or observing how it acts with other materials or energy!
200
When an ice cream melts, what is happening?
It is changing states from a solid to a liquid.
200
What is the difference between melting and dissolving?
Melting is when one substance changes from (state) a solid to a liquid.
When something dissolves there needs to be two substances - a solute and a solvent.
200
Define molecule.
A group of atoms bonded together.
300
In which state of matter do objects retain the same size and structure, and have a tight molecular bond?
Solid
300
Why shouldn't we use a metal spoon when cooking? Name it's specific physical property.
We shouldn't use it when cooking because metal is a conductor of heat.
300
What happens to the mass (weight) of your phone screen before and after it shatters?
The mass (weight) stays the same.
300
Give examples of materials that are a solute, solvent, then a solution.
Solute: sugar, salt
Solvent: water (or most liquids)
Solution: the complete mixture between the solute and solvent when they are bonded together.
300
Define volume.
The amount of space that a three dimensional object/fluid takes up.
400
Molecules are most active in which state of matter?
gas
400
What material is use for electrical wiring? Hint: It also used to be used to make pennies!
Copper
400
Define the "Conservation of Matter".
The Law of Conservation of Matter tells us that the amount of matter stays the same even when a substance changes form
400
What is happening to the particles of the solute and solvent during the process of dissolving?
The solvent's particles knock the solute's particles out of their tight bond, and create new bonds together.
400
Define conductivity.
The ability of a material to transmit heat or electricity through a material, transfering from atom to atom.
500
What are the unique properties of a liquid? Name 3.
1. The molecules have a loose enough bond to flow.
2. It always takes the shape of its container.
3. It has a fixed volume, meaning it will always stay the same.
500
Why do our pots and pans have plastic handles? Use specific vocabulary (Starts with an "i") to receive full points.
It is an insulator. Plastic is a poor conductor of heat, so the plastic protects our hands from getting burned.
500
What is this bar graph showing?
It shows that the amount of matter in an ice cube is the same before and after it melts.
500
Why does sugar dissolve more quickly in hot water than cool water?
There is more energy available to break the bonds between solute particles.
500
Define insoluble.
The inability for a material to dissolve.