click below
click below
Normal Size Small Size show me how
7th Garde Matter
a stack about matter
Question | Answer |
---|---|
What is matter? | It's everything that has mass and occupies volume. |
What are objects made of? | Molecules. |
What are molecules made up of? | Atoms. |
What are atoms made of? | Interacting subatomic particles like protons, neutrons, and electrons. |
What are the three phases of matter? | Solid, liquid, gas. |
Matter is also known as? | The building blocks of matter. |
What kind of changes does matter undergo? | All matter, regardless of state, undergoes physical and chemical changes. |
What is electrical conductivity? | Ability to carry electricity. |
What is heat conductivity? | Ability to transfer energy as heat. |
What is Density? | Measure of how tightly matter is "packed". |
What is melting point? | Temprature at which a solid changes state to become a liquid. |
What is boiling point? | Temperature at which liquid boils and changes state to become a gas. |
What is malleability? | Ability to be hammered or beatin into thin sheets. |
What is ductility? | Ability to be drawn in to a thin wire. |
What is a physical change? | A chemical change occurs when the substance changes state but does not change its chemical composition. |
What are chemical changes? | A chemical change occurs when a substances changes in to sometning new. |
What are substances? | Substances can be identified as an element, compound, or a mixture. |
What is a mixture? | Mixture are two or more substances that are chemically combined. |
What are colloids? | Colloids are solutions. |
What is plasma? | Plasma is by far the most common form of matter.It is in the stars and in the tenuous space between them makes up over 99% of the visible universe and probably most of that which is not visible. |