Atoms
A Positive Subatomic Particle
What is a proton?
The atomic number of an element.
What are the number of protons?
Attraction between particles of the same substance that often results in surface tension.
What is cohesion?
Characteristics:
Often taste sour
can burn skin & eyes
can dissolve metals
What is an Acid?
The process that is used to find answers to questions about the world around us.
What is the scientific method?
The basic building blocks of all matter.
What is an atom?
The number of protons and neutrons in an atom.
The reason ice floats.
What is water is less dense as a solid than as a liquid?
Characteristics:
Can taste bitter, sweetish, or salty
can burn skin & eyes
React more easily with protein than with metal; they are often used for cleaning
What are bases?
Any part of an experiment that can change.
What is a variable?
Where protons and neutrons are located.
What is the nucleus of an atom?
This element has the atomic number 20.
What is calcium?
The three particles water is made up of.
What is one hydrogen and two oxygen atoms?
Substances that provide hydrogen ions.
What are acids?
The process of gathering information about events or processes using your senses.
What are observations?
Atoms are made up of these three particles.
What are protons, neutrons, and electrons?
Find the number of neutrons in an atom that has an atomic number of 6 and a mass number of 12.011.
What is 6 neutrons?
The reason water can dissolve more substances than any other liquid.
What is a universal solvent?
Substances that provide hydroxide ions.
What are bases?
The factor that you purposely change or control in order to see what effect it has.
What is an independent variable?
A pure substance that cannot be separated into different substances by ordinary processes.
What is an element?
A particle that has a different number of protons and electrons.
What is an Ion?
The amount of energy required to raise the temperature of water by one degree Celsius is quite large.
What is high specific heat?
The pH of baking soda.
What is 8?
In this relationship, when one variable increases, the other increases.
What is a direct relationship?