Matter is Elementary
All matter is composed of these.
What are atoms?
This bond results from the "sharing" of valence electrons between atoms.
What is a covalent bond?
When 2 or more substances are combined but they are not combined chemically.
What is a mixture?
pH is the abbreviation of this.
What is potential hydrogen?
This is a way for science to systematically answer a question about a natural phenomena by using several steps.
What is the scientific method?
Water exists on earth in these states.
What are solid, liquid, and gas?
This type of bond is responsible for joining two water molecules together.
What is a hydrogen bond?
Composed of 2 parts; one part is the substance being dissolved, and the other part is doing the dissolving.
What is a solution?
The tendency of water molecules to constantly break into hydrogen and hydroxide ions and reform in solution.
What is dissociation?
Problems are often observed by your senses; which often cannot be measures numerically, making them this kind of observation.
What is a qualitative observation?
This state of matter is defined by expanding freely to fill a prescribed space.
What is a gas?
This is the outermost layer of an electron cloud which determines the identity of an element and its reactivity.
What is a valence shell?
This mixture is an aqueous solution containing salt.
What is saline?
The measure of a pH reading is made on this kind of scale.
What is a logarithmic scale?
A guess based on previous or acquired knowledge and therefore likely to be correct.
What is an educated guess?
These 4 elements make up about 96% of the weight of most organisms.
What are Carbon, Hydrogen, Nitrogen, and Oxygen?
This is equal to mass divided by volume.
What is density?
Milk is an example of this kind of mixture.
What is a homogenous mixture?
pH is the measure of the concentration of this ion in aqueous solution.
What is a hydrogen ion (H+)?
This declarative statement must produce results, has to be measurable or quantifiable, and must be falsifiable.
What is a hypothesis?
An element that has the same number of protons as its elemental form, but has differing number of neutrons.
What is an isotope?
This is the attractive force between valence electrons of 2 different atoms that holds them together.
What in an intermolecular force?
Medication can be dispensed in a mixture in which a measured dose is shaken with the particles temporarily dispersed throughout a liquid.
What is a suspension?
This is the pH pf household bleach.
What is 15?
Experimentation can be repeated as multiple questions pertaining to the same idea can be tested and accepted or rejected based on the results.
What is iterate?