SRP Logbook: How do different brands of Popcorn differ in their popping rate.

Investigation- Difference between Popcorn's popping rate

Equipment

Popcorn Maker(Air popper) x1
Different brands of popcorn x4
Tablespoon x1
Bowl x3
Stopwatch x1
Book x1
Pen x1
Phone x1

Brand A

Brand B

Brand C

I did some research on the internet and I found some variables to put into my experiment and they are:

Independent Variable- The Brands of the Popcorn
Dependent Variable- Popping rate of the popcorns measured in second

Controlled Variable:
Popcorn Maker (The temperature of kernels being cooked)
The amount of kernels being put in the Popcorn Maker (1 tablespoon)

How I got my ideas?
I got my ideas from the suggestion provided in the booklet

Problems
The main problem that occurred for me was that, one of my popcorn brands was used as a snack for a movie just before the experiment was performed.

What was I thinking?
Whether to get kernels or the packaged version?
Should I cook it by microwave or by the Popcorn maker?
Should I let it cool down before doing trials and make it fair?
What will i do with the popcorn after the Experiment?

23/2 Saturday- I bought 4 different types of popcorn brands (Poppin, Black and Gold, Riveana and Popcorn King). I bought them in kernels instead of the microwavable packaged version and I'm planning to cook it by a popcorn maker rather than a microwave. (I'll upload pictures later)

My hypothesis is that they will pop the pop at the same rate because they are all corn seeds

24/3 Sunday just before i did my experiment, my family decides to eat one of the popcorn brands i planned on testing on, leaving me to only have 3 left for the experiment. I performed the experiment and i will write the results in the booklet. I finished the booklet and read it thoroughly and I plan on putting it on Word Document during the weekdays.

Attempt #1 Measurements for each pop measured in Seconds

Brand	1st Pop	2nd Pop	3rd Pop	4th Pop	5th Pop	6th Pop	7th Pop	8th Pop	9th Pop	10th Pop	Total (Minutes)	Average (Minutes
Riaveana	52	54	57	59	60	62	65	66	68	69	10 mins 12 sec	1:01 Mins
Black And Gold	53	56	58	61	63	66	67	69	70	71	10 mins 34 sec	1:03 Mins
Poppin	50	52	55	57	59	60	62	65	68	69	9 mins 57 sec	0.59 Mins

Attempt #2 Measurements for each pop measured in seconds

Brand	1st Pop	2nd Pop	3rd Pop	4th Pop	5th Pop	6th Pop	7th Pop	8th Pop	9th Pop	10th Pop	Total (Minutes)	Average (Minutes
Riaveana	52	54	56	58	60	62	64	67	68	69	10 mins 10sec	1:01 Mins
Black And Gold	53	55	58	60	63	65	67	69	71	72	10 mins 33sec	1:03 Mins
Poppin	51	53	55	57	59	60	62	64	65	66	9 mins 52 sec	0.59 Mins