The Composition of Organisms and Their Surroundings
Biological Organization
Atoms
Chemical Bonds
Water and Life
100
Anything that occupies space and has mass.
What is matter?
100
A particle that is smaller than an atom.
What is subatomic particle?
100
The smallest unit of matter that still retains the properties of an element.
What is an atom?
100
This bond is formed by the attraction of opposite charges of charged atoms.
What is an ionic bond?
100
This is the tendency of molecules to stick together.
What is cohesion?
200
A substance consisting of two or more different elements combined in a fixed ratio.
What is a compound?
200
This unit of matter is larger than an atom but smaller than an organelle.
What is a particle?
200
The mass of an atom is measured with this unit of measurement.
What is a dalton?
200
This bond will always form between atoms of the same element.
What is a covalent bond?
200
Clinging of one molecule to another.
What is adhesion?
300
These elements make up 96.3% of living matter.
What are Oxygen, Carbon, Hydrogen, and Nitrogen?
300
This is formed when two or more atoms are held together by a covalent bond.
What is a molecule?
300
This number is the same as the number of protons in an atom.
What is the atomic number?
300
This is the making and breaking of bonds.
What are chemical reactions?
300
The energy required to heat a gram of substance one degree celsius.
What is specific heat?
400
A substance that cannot be broken down to other substances by ordinary chemical means.
What is an element?
400
The three types of subatomic particles that make up the basic structure of an atom.
What are protons, electrons, and neutrons?
400
Daily Double
A carbon atom has six protons and eight neutrons, what is its mass number?
400
A weak attraction between a hydrogen atom that bears a partial positive charge and another atom that bears a partial negative.
What is a hydrogen bond?
400
Uncharged, nonpolar molecules.
What is hydrophobic?
500
This unit of matter is named from a Greek word meaning "indivisible".
What is an atom?
500
A specialized subunit within a cell that has a specific function, and it is usually separately enclosed within its own lipid bilayer.
What is an organelle?
500
This determines the reactivity of an atom.
What is the valence shell?
500
This type of bond is easily broken in water.
What is an ionic bond?
500
Anything that dissociates (ionizes) in water.
What is an electrolyte? (Double points of you can name three electrolytes)
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