I'll give as much points you want. Assignment: Determining Half-life Exploration

Trial Amount Decayed Amount Left

Trial 1

Trial 2

Trial 3

Trial 4

Trial 5

Trial 6

Using the data from the table, make a graph of the number of atoms remaining after each trial.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.