Heredity
DNA
Mitosis & Meiosis
Cells
Any Ones Guess
100
The only portion of the Electromagnetic Spectrum that we can see without scientific tools.
VISIBLE LIGHT
100
Heat moves from __________ objects to the __________ objects.
Heat moves from WARMER objects to the COLDER objects
100
mass per unit volume of a material
Density
100
TRUE or FALSE Physical properties, like density, does not depend on how much of the substance you have.
TRUE! Physical properties DOES NOT depend on how much of the substance you have – if it is the same substance it should have the same properties!
100
The smallest particle of an element that still retains the properties of the element
atom
200
Long wavelengths have _________ energy and _______ frequency.
Long wavelengths have LOW energy and LOW frequency.
Short wavelengths have HIGH energy and HIGH frequency.
200
Adding or removing heat can change the ____________ and/ or the _________ of the object or matter.
Adding or removing heat can change the TEMPERATURE and/or the STATE OF MATTER of the object.
200
substance that speeds up a chemical reaction without being permanently changed itself
catalyst
200
A melting ice cube is an example of what type of change?
PHYSICAL CHANGE! Phase changes are physical changes- NO new matter is formed.
200
Electrically neutral particle inside the nucleus of an atom
Neutron
300
Light waves travel the fastest in a _______________.
Light waves travel the fastest in a VACUUM. (No matter present)
300
When heat is transferred between two objects through direct touch.
CONDUCTION
300
a substance in which its different components are easily distinguished
Heterogenous mixture
300
The smallest unit of matter is called _______. And in the nucleus are ______ and ________.
The smallest unit of matter is called an ATOM. And in the nucleus are PROTONS and NEUTRONS.
Electrons are found in the cloud or shells on the outside of the nucleus!
300
An outer shell electron that can participate in the formation of a chemical bond
Valence Electron
400
Sound waves travel the fastest in _________ and the slowest in _________ types of medium.
Sound waves travel the fastest in SOLIDS and the slowest in GASES types of medium.
Remember SOUND waves MUST have a medium to travel!
400
When heat is transferred between two objects when there is no matter needed.
RADIATION
400
In a solution, the substance being dissolved
Solute
400
If you go to the moon your __________ will change, but your _______ will remain the same.
If you go to the moon your WEIGHT will change, (because of the gravitational difference) but your MASS will remain the same.
400
Horizontal row in the periodic table and how many?
Period- 7
500
What is this an example of- when light changes direction when it goes through a different medium
Refraction- changing direction of light wave when it goes through a matter of different density.
500
This type of heat transfer can only occur in a fluid (liquid or gas). Warmer matter moves up and cooler matter sinks forming currents.
CONVECTION
500
a substance that produces hydroxide ions (OH-) in a water solution.
Base or Alkaline. pH is greater than 7
500
The periodic table is organized by the ____________ number which is also the number of __________ in the nucleus of an atom.
Ther periodic table is organized by the ATOMIC number which is also the number of PROTONS in the nucleus of an atom.
Remember GROUPS are VERTICAL COLUMNS (18) and the PERIODS are HORIZONTAL ROWS (7).
500
Area around the nucleus of an atom where the atom's electrons are most likely to be found
Electron Cloud