If you have changed one or more of physical properties, the substance has to stay chemically the same. EX: melting ice, ripping paper
how do you identify a physical change?
100
how compacted the molecules are in an object
What is density?
100
When a totally new substance is created. what to look for is rust, erosion, producing a gas, change in temperature, change in color, decomposition, ability to burn
how do you identify a chemical change?
100
Definite shape and volume
what is a solid's properties of matter?
100
The air temperature is warmer than the liquid temperature, the water molecules begin to heat up and change to a gas
how does heat energy take place in the evaporation process?
200
Size, shape, color, texture, odor, hardness
what are the specific properties?
200
The amount of space an object takes up
What is volume?
200
Goes from a liquid to a gas. energy is added (air is warmer than water) The water molecules heat up and change, happens at the surface
What is evaporation?
200
No definite shape, definite volume
What are a liquid's properties of matter?
200
Ivory soap's molecules aren't as tightly packed as any other soap. This is an example of boyle's law.
suppose you microwaved two soaps. One ivory and one irish springs. The irish springs soap expanded a little bit, but the ivory soap expanded as big as the plate. Why?
300
Mass, weight, volume, density
What are the general properties?
300
As pressure increases, volume decreases
what is boyle's law?
300
Change of a gas to a liquid. when the gas molecules come in contact with something cooler, they slow down and become a liquid
What is condensation?
300
No definite shape or volume
What are a gases' properties of matter?
300
chemical change
burning wood is an example of______
400
The amount of matter in an object, cannot change unless added or taken away in something
What is mass?
400
Temperature increases, volume increases and vise versa EX: Ivory soap
What is Charle's law
400
When a substance goes straight to a gas, skipping the liquid phase.
What is sublimation?
400
we learn that everything is either a solid, liquid, or gas. but occasionally, there not. they would be plasma. plasma is an energy EX: fire
What is plasma?
400
imorphasolid
What phase of matter is oobleck?
500
The amount of gravatational force needed to keep matter on the earth
What is weight?
500
When energy is added or taken away.
how does matter change phase/state?
500
Different chemicals are combined to create a new substance.
Explain a chemical reaction compared to a change.
500
It is a solid that can be a solid sometimes, but kind of liquidy. EX: oobleck