Show:
atoms
Matter
Chemicals
Common knowledge
random
100
What is a substance composed of a single type of atom?
What is element
100
A column on the periodic table is called a ? .
What is group
100
What important group of chemicals contains the "blueprints" that guide the construction of all proteins in the cell?
What is nucleic acids
100
Who is the vice president
What is Joe Biden
100
What system did God give bats to seek out prey?
What is echolocation
200
Which type of radioactive decay releases energy from the nucleus without a change in the number of protons or neutrons?
What is gamma decay
200
The complex organic molecules used to build and maintain living cells are ? .
What is proteins
200
A mixture containing tiny suspended clumps or particles is a(n)
What is colloid
200
How many Stripes are on the American Flag
What is 13
200
Which scientific principle states that a type of organism that is better able to survive than another type of organism will become predominant?
What is natural selection
300
Which intermolecular force is caused by random imbalances of electrons resulting in a temporary dipole?
What is London force
300
What is the special state of matter that exists at extremely high temperatures?
What is plasma
300
Substances composed of different types of atoms bonded together are ?
What is compounds
300
who fought in the revolutionary war
What is America and England
300
Which type of chemical formula shows the simplest ratio of atoms in a compound?
What is empirical formula
400
Which subatomic particle carries a positive electrical charge?
What is proton
400
What property describes how tightly packed matter is?
What is density
400
A substance that has the same physical properties throughout is a(n) ? substance.
What is homogeneous
400
name a country that starts with the letter U
What is USA
400
A mixture in which molecules of a substance are uniformly mixed is a ? .
What is solution
500
What is the term for the unique abbreviation given to each element?
What is chemical symbol
500
Which type of radioactive decay releases energy from the nucleus without a change in the number of protons or neutrons?
What is gamma decay
500
What is the process in which the body produces and uses energy from food?
What is metabolism
500
Farmer John has 46 sheep, and all but 7 die. how many are left?
What is 7
500
What is the energy associated with the position of an object and the forces acting upon it?
What is potential energy