Show:
molecules
States of matter
Elements
Different forms of atoms
older science and other stuff
100
Which of the following is correct: A) Molecules are made of atoms. B) Atoms are made of molecules
Atoms are made of molecules
100
List the 4 phases (states) of matter.
Liquid,solid, gas,plasma
100
What is the name of the list of all the elements in order
The Periodic Table of Elements
100
If an element has a different number of protons and electrons, what is it called?
An ion
100
What is life science called?
biology
200
What is the molecular make upof water?
H2O
200
Which state of matter has the mmost bonds
Solids
200
About how many elements are natural?
92
200
If an atom has more electrons than protons, what kind of charge woiuld it have?
A negative charge
200
What is the smallest unit of life that still acts like a living thing?
a cell.
300
Which 2 subatomic particles (PEN) weigh about the same?
Protons and neutrons
300
What temperature on the3 celcius scale does water boil?
100
300
What is the atmoc number equal to?
Number of neutrons
300
What do we call the different forms of an atom based on number of neutrons?
isotopes
300
Name 4 kingdoms
Plant,Animals, Fungus,Protist, Moneran
400
What is a covalent bond?
When atoms share electrons.
400
What are 2 places we seeplasma on Earth?
plasma screen tvs, fleurescent light
400
What is the atomic mass number equal to?
Protons +Neutrons
400
What does it mean if an isotope is unstable? (Don'tgive another word for it, explain what it mEANS.)
iT WILL EVENTUALLY BREAK DOWN INTO OTHER ATOMS.
400
What is a niche?
A niche is a job the organism does in an environment.
500
What is an ionic bond
a bond where electrons are stolen and then charged elements sticktogether.
500
What is the difference between gas and plasma
Plasma ismoving so fast that even the electrons have been stripped away.
500
What is the difference between atomic mass and mass number.
Mass number is the wieght of the mostcommon isotope; atomic mass is an average of alkl the isotopes.
500
wHAT IS ANOTHER WORD FOR AN UNSTABLE? tHIS REFERS TO HOW UNHEALTHY IT IS.
radioactive
500
What is the name for cell that makes up the brain?
A neuron