Candy counting experiment
Make a "bar graph" with different colored candies. Suitable for 3+.
Hypothesis
[edit  edit source]How many different colors of candy are there in the bag of candy? Do you think there are the same number of each color?
Materials
[edit  edit source]
1+ (small) bags of candy

1+ sheets of paper

1 writing implement
Methods
[edit  edit source] Optional: Draw a graph with the # of rows for each color of candy on a piece of paper
 Line up the candies so that a single color is in each row
 Count the number of candies in each row
Replication
[edit  edit source]Optional: Repeat the experiment again with a different bag of the same candy of the same size. This is called a trial.
Results
[edit  edit source]For preschool aged children
[edit  edit source]Which color candy was most common? Which color candy was least common?
Did you eat any candies before the experiment was over? How might that have affected the results?
If you did additional trials, did you get the same number of candies for each color in the second trial?
For primary school aged children
[edit  edit source]Calculate the percentage of each color of candy for each bag.
Then calculate the average percentage of each color across all trials.
For secondary school aged children
[edit  edit source]Perform a Pearson's chisquare test