Goot is conducting an experiment to see whether goldfish eat more flakes or pellets. He thinks that the fish will choose the flakes. Every day, Gooft places both flakes and pellets in a fish tank and observes which food the fish choose what evidence would be best for Geoff to collect as he observes the fish?
umber of fish in the tank
the time takes for the fish to finish eating
the number of th that cat cach type of food
the time to for the fish to choose what type of food to eat