Calculating
What is the density of an object often compared to?
The density of an object is often compared to water.
What is matter?
Matter is anything that has mass and takes up space.
Is a melted ice cube a physical or chemical change?
Physical
What does C.E.R stand for?
C.E.R stands for Claim, Evidence, Reasoning
Matter cannot be:
How do you calculate density?
Density is calculated be dividing the mass of an object by it's volume.
What is volume?
Volume is a physical property relating to the amount of matter in a substance to the volume of the substance.
What is a physical property?
A physical property is a characteristic that can be observed or measured without changing the identity of the substance.
What is relative density?
Relative density is the comparison of the density of one material as it relates to another (usually water)
Solids have a definite:
Shape and volume.
How do you find the volume of an object?
To find the volume of an object, you divide the length times the width times the height.
What is density?
Density is defined as mass per unit volume.
What is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization.
Condensation
What is the smallest unit of life?
The smallest unit of life is an atom
What is a substance that is made entirely from one type of atom?
Element
How do you find mass?
Place an object on a balance and record mass in grams.
What is mass?
Mass is the amount of matter in an object.
What is the law conservation of matter?
The law conservation of matter is during any chemical or physical change the total amount of matter remains constant
What does density describe?
Density describes how much space an object or substance takes up (it's volume) in relation to the amount of matter in that object or substance (it's mass)
What type of system is mass converted?
A closed system.
What is the irregular solid density
put an irregular object in water and measure how much the water rose.
What is displacement?
displacement is a procedure used to measure the volume of a solid object by placing it in a known amount of liquid.
What are the physical change forms?
Solid>Liquid>Gas>Plasma
What is the water displacement method?
Filling a graduated cylinder with a measurable amount of water. Place object in cylinder. Observe how much water is displaced. Subtract the first water level from the new water level.
What is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.
Sublimation