MISC 1.0
Frying an egg is an example of?
Chemical Change
In what state of matter are molecules tightly packed together?
SOLID
Melting is a change of state where a solid changes into a liquid
a solid changes into a liquid
What state of matter is Helium?
Gas
What is freezing and boiling point?
Give me an example of a physical change and explain why it is.
ANSWERS MAY VARY
In what state of matter are molecules spread very far apart and move very quickly?
GAS
What is Freezing?
Freezing is a change of state where a liquid tunrs into a solid
What state of matter is Mountain Dew?
LIQUID
through observations (things we touch, see hear, see, taste) or by measurement.
What is a chemical change?
Chemical changes require the original substances to change.
(cannot be undone)
Describe the particles in a liquid.
The molecules in a liquid are spread apart a little and move around at a medium speed.
What is Evaporation?
Occurs when a liquid turns into a gas
WHAT IS A SOLID?
has a definite shape and takes up a definite amount of space.
What are the 2 categories that properties are broken into?
1. Physical Properties
2. Chemical Properties
What is a physical change?
Physical changes involve a change in appearance without changing the original substance.
(can be reversed)
What are Particles?
All matter is made up of tiny particles called ATOMS!
What is Sublimation?
Sublimation is when a solid turns into a gas WITHOUT passing through the liquid stage
WHAT IS A LIQUID?
takes the shape of its container and takes up a definite amount of space
What is a Physical property?
A PHYSICAL PROPERTY is any property that is evident WITHOUT a chemical reaction
Fill out the Changing of States diagram
(show it on the screen and have them fill in each blank)
Draw on the board what particles look like as a: SOLID, LIQUID AND GAS!
answer on whiteboard
What are clouds made of?
Water vapor
WHAT IS A GAS?
has no definite shape and takes up no definite amount of space
What is a chemical property?
A CHEMICAL PROPERTY is any property that becomes evident during, or after, a chemical change